10256643153 has 12 divisors (see below), whose sum is σ = 15018099460. Its totient is φ = 6744093696.

The previous prime is 10256643143. The next prime is 10256643169. The reversal of 10256643153 is 35134665201.

10256643153 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 6 + 643 + 1 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6433323264 + 3823319889 = 80208^2 + 61833^2 .

It is not a de Polignac number, because 10256643153 - 2¹³ = 10256634961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10256643143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7805008 + ... + 7806321.

Almost surely, 2^10256643153 is an apocalyptic number.

It is an amenable number.

10256643153 is a deficient number, since it is larger than the sum of its proper divisors (4761456307).

10256643153 is a wasteful number, since it uses less digits than its factorization.

10256643153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611408 (or 15611405 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 10256643153 in words is "ten billion, two hundred fifty-six million, six hundred forty-three thousand, one hundred fifty-three".