1237231906560 has 432 divisors, whose sum is σ = 4617165387744. Its totient is φ = 304074620928.

The previous prime is 1237231906541. The next prime is 1237231906577. The reversal of 1237231906560 is 656091327321.

1237231906560 is a `hidden beast` number, since 1 + 2 + 3 + 72 + 3 + 19 + 0 + 6 + 560 = 666.

It is a super-2 number, since 2×1237231906560² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101381419 + ... + 101393621.

It is an arithmetic number, because the mean of its divisors is an integer number (10687882842).

Almost surely, 2^{1237231906560} is an apocalyptic number.

1237231906560 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 1237231906560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2308582693872).

1237231906560 is an abundant number, since it is smaller than the sum of its proper divisors (3379933481184).

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

1237231906560 is a wasteful number, since it uses less digits than its factorization.

1237231906560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12920 (or 12903 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 1237231906560 in words is "one trillion, two hundred thirty-seven billion, two hundred thirty-one million, nine hundred six thousand, five hundred sixty".