61201026122160 has 160 divisors (see below), whose sum is σ = 190040045944320. Its totient is φ = 16293022787584.

The previous prime is 61201026122147. The next prime is 61201026122191. The reversal of 61201026122160 is 6122162010216.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1574364484 + ... + 1574403356.

It is an arithmetic number, because the mean of its divisors is an integer number (1187750287152).

Almost surely, 2^{61201026122160} is an apocalyptic number.

61201026122160 is a gapful number since it is divisible by the number (60) 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 61201026122160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95020022972160).

61201026122160 is an abundant number, since it is smaller than the sum of its proper divisors (128839019822160).

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

61201026122160 is a wasteful number, since it uses less digits than its factorization.

61201026122160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49675 (or 49669 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

Adding to 61201026122160 its reverse (6122162010216), we get a palindrome (67323188132376).

The spelling of 61201026122160 in words is "sixty-one trillion, two hundred one billion, twenty-six million, one hundred twenty-two thousand, one hundred sixty".