12527752666 has 48 divisors (see below), whose sum is σ = 22382440128. Its totient is φ = 5256210960.

The previous prime is 12527752651. The next prime is 12527752681. The reversal of 12527752666 is 66625772521.

It is an interprime number because it is at equal distance from previous prime (12527752651) and next prime (12527752681).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435955 + ... + 463801.

It is an arithmetic number, because the mean of its divisors is an integer number (466300836).

Almost surely, 2^12527752666 is an apocalyptic number.

12527752666 is a deficient number, since it is larger than the sum of its proper divisors (9854687462).

12527752666 is a wasteful number, since it uses less digits than its factorization.

12527752666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27908 (or 27873 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 49.

The spelling of 12527752666 in words is "twelve billion, five hundred twenty-seven million, seven hundred fifty-two thousand, six hundred sixty-six".