1056537337920 has 112 divisors (see below), whose sum is σ = 3357423986688. Its totient is φ = 281498214400.

The previous prime is 1056537337859. The next prime is 1056537337939. The reversal of 1056537337920 is 297337356501.

It is a super-2 number, since 2×1056537337920² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626872 + ... + 1583048.

Almost surely, 2^{1056537337920} is an apocalyptic number.

1056537337920 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 1056537337920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678711993344).

1056537337920 is an abundant number, since it is smaller than the sum of its proper divisors (2300886648768).

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

1056537337920 is a wasteful number, since it uses less digits than its factorization.

1056537337920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957348 (or 957338 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 51.

The spelling of 1056537337920 in words is "one trillion, fifty-six billion, five hundred thirty-seven million, three hundred thirty-seven thousand, nine hundred twenty".