1056511012506 has 32 divisors (see below), whose sum is σ = 2238325265088. Its totient is φ = 331305127680.

The previous prime is 1056511012483. The next prime is 1056511012507. The reversal of 1056511012506 is 6052101156501.

It is a super-2 number, since 2×1056511012506² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056511012507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2105280 + ... + 2558363.

It is an arithmetic number, because the mean of its divisors is an integer number (69947664534).

Almost surely, 2^{1056511012506} is an apocalyptic number.

1056511012506 is an abundant number, since it is smaller than the sum of its proper divisors (1181814252582).

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

1056511012506 is a wasteful number, since it uses less digits than its factorization.

1056511012506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665886.

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 1056511012506 in words is "one trillion, fifty-six billion, five hundred eleven million, twelve thousand, five hundred six".