10531500156 has 18 divisors (see below), whose sum is σ = 26621292152. Its totient is φ = 3510500040.

The previous prime is 10531500149. The next prime is 10531500157. The reversal of 10531500156 is 65100513501.

10531500156 is a `hidden beast` number, since 1 + 0 + 5 + 3 + 1 + 500 + 156 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×10531500156² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10531500157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146270800 + ... + 146270871.

Almost surely, 2^10531500156 is an apocalyptic number.

It is an amenable number.

10531500156 is an abundant number, since it is smaller than the sum of its proper divisors (16089791996).

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

10531500156 is a wasteful number, since it uses less digits than its factorization.

10531500156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292541681 (or 292541676 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The spelling of 10531500156 in words is "ten billion, five hundred thirty-one million, five hundred thousand, one hundred fifty-six".