10512551240 has 16 divisors (see below), whose sum is σ = 23653240380. Its totient is φ = 4205020480.

The previous prime is 10512551233. The next prime is 10512551261. The reversal of 10512551240 is 4215521501.

It can be written as a sum of positive squares in 2 ways, for example, as 10375052164 + 137499076 = 101858^2 + 11726^2 .

It is a super-2 number, since 2×10512551240² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131406851 + ... + 131406930.

Almost surely, 2^10512551240 is an apocalyptic number.

10512551240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10512551240 is an abundant number, since it is smaller than the sum of its proper divisors (13140689140).

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

10512551240 is a wasteful number, since it uses less digits than its factorization.

10512551240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262813792 (or 262813788 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The spelling of 10512551240 in words is "ten billion, five hundred twelve million, five hundred fifty-one thousand, two hundred forty".