10645261531656 has 32 divisors (see below), whose sum is σ = 26933794241760. Its totient is φ = 3505668455552.

The previous prime is 10645261531637. The next prime is 10645261531657. The reversal of 10645261531656 is 65613516254601.

It is a super-2 number, since 2×10645261531656² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10645261531599 and 10645261531608.

It is not an unprimeable number, because it can be changed into a prime (10645261531657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672001405 + ... + 2672005388.

It is an arithmetic number, because the mean of its divisors is an integer number (841681070055).

Almost surely, 2^{10645261531656} is an apocalyptic number.

It is an amenable number.

10645261531656 is an abundant number, since it is smaller than the sum of its proper divisors (16288532710104).

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

10645261531656 is a wasteful number, since it uses less digits than its factorization.

10645261531656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344006885 (or 5344006881 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 10645261531656 in words is "ten trillion, six hundred forty-five billion, two hundred sixty-one million, five hundred thirty-one thousand, six hundred fifty-six".