123537062660 has 72 divisors (see below), whose sum is σ = 285291476568. Its totient is φ = 44901260800.

The previous prime is 123537062653. The next prime is 123537062669. The reversal of 123537062660 is 66260735321.

123537062660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1438533184 + 122098529476 = 37928^2 + 349426^2 .

It is a super-2 number, since 2×123537062660² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123537062669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5634920 + ... + 5656800.

It is an arithmetic number, because the mean of its divisors is an integer number (3962381619).

Almost surely, 2^123537062660 is an apocalyptic number.

123537062660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123537062660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142645738284).

123537062660 is an abundant number, since it is smaller than the sum of its proper divisors (161754413908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123537062660 is a wasteful number, since it uses less digits than its factorization.

123537062660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24245 (or 24232 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 41.

Adding to 123537062660 its reverse (66260735321), we get a palindrome (189797797981).

The spelling of 123537062660 in words is "one hundred twenty-three billion, five hundred thirty-seven million, sixty-two thousand, six hundred sixty".