10661512432 has 10 divisors (see below), whose sum is σ = 20656680368. Its totient is φ = 5330756208.

The previous prime is 10661512399. The next prime is 10661512451. The reversal of 10661512432 is 23421516601.

It is a happy number.

It is a super-2 number, since 2×10661512432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10661512394 and 10661512403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333172248 + ... + 333172279.

Almost surely, 2^10661512432 is an apocalyptic number.

It is an amenable number.

10661512432 is a deficient number, since it is larger than the sum of its proper divisors (9995167936).

10661512432 is an equidigital number, since it uses as much as digits as its factorization.

10661512432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666344535 (or 666344529 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 10661512432 in words is "ten billion, six hundred sixty-one million, five hundred twelve thousand, four hundred thirty-two".