66076732257075 has 36 divisors (see below), whose sum is σ = 121103112822120. Its totient is φ = 34421367496320.

The previous prime is 66076732257047. The next prime is 66076732257083. The reversal of 66076732257075 is 57075223767066.

It is not a de Polignac number, because 66076732257075 - 2⁸ = 66076732256819 is a prime.

It is a super-2 number, since 2×66076732257075² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3414808530 + ... + 3414827879.

It is an arithmetic number, because the mean of its divisors is an integer number (3363975356170).

Almost surely, 2^{66076732257075} is an apocalyptic number.

66076732257075 is a deficient number, since it is larger than the sum of its proper divisors (55026380565045).

66076732257075 is a wasteful number, since it uses less digits than its factorization.

66076732257075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6829636468 (or 6829636460 counting only the distinct ones).

The product of its (nonzero) digits is 155584800, while the sum is 63.

The spelling of 66076732257075 in words is "sixty-six trillion, seventy-six billion, seven hundred thirty-two million, two hundred fifty-seven thousand, seventy-five".