10661616536 has 8 divisors (see below), whose sum is σ = 19990531020. Its totient is φ = 5330808264.

The previous prime is 10661616529. The next prime is 10661616541. The reversal of 10661616536 is 63561616601.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10661616536² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10661616493 and 10661616502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666351026 + ... + 666351041.

Almost surely, 2^10661616536 is an apocalyptic number.

It is an amenable number.

10661616536 is a deficient number, since it is larger than the sum of its proper divisors (9328914484).

10661616536 is a wasteful number, since it uses less digits than its factorization.

10661616536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332702073 (or 1332702069 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 10661616536 in words is "ten billion, six hundred sixty-one million, six hundred sixteen thousand, five hundred thirty-six".