10515610066 has 24 divisors (see below), whose sum is σ = 18044766180. Its totient is φ = 4567863552.

The previous prime is 10515610057. The next prime is 10515610121. The reversal of 10515610066 is 66001651501.

It can be written as a sum of positive squares in 6 ways, for example, as 2369645041 + 8145965025 = 48679^2 + 90255^2 .

It is a super-2 number, since 2×10515610066² (a number of 21 digits) contains 22 as substring.

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 in 11 ways as a sum of consecutive naturals, for example, 692221 + ... + 707248.

Almost surely, 2^10515610066 is an apocalyptic number.

10515610066 is a deficient number, since it is larger than the sum of its proper divisors (7529156114).

10515610066 is a wasteful number, since it uses less digits than its factorization.

10515610066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399518 (or 1399501 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 10515610066 in words is "ten billion, five hundred fifteen million, six hundred ten thousand, sixty-six".