1056256957940 has 48 divisors (see below), whose sum is σ = 2230803892800. Its totient is φ = 420091118592.

The previous prime is 1056256957939. The next prime is 1056256957991. The reversal of 1056256957940 is 497596526501.

It is a happy number.

It is a super-2 number, since 2×1056256957940² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056256957940.

It is a congruent number.

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, 45013931 + ... + 45037389.

It is an arithmetic number, because the mean of its divisors is an integer number (46475081100).

Almost surely, 2^{1056256957940} is an apocalyptic number.

1056256957940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056256957940 is an abundant number, since it is smaller than the sum of its proper divisors (1174546934860).

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

1056256957940 is a wasteful number, since it uses less digits than its factorization.

1056256957940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36224 (or 36222 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 59.

The spelling of 1056256957940 in words is "one trillion, fifty-six billion, two hundred fifty-six million, nine hundred fifty-seven thousand, nine hundred forty".