75746101666 has 16 divisors (see below), whose sum is σ = 115479052920. Its totient is φ = 37257404800.

The previous prime is 75746101603. The next prime is 75746101679. The reversal of 75746101666 is 66610164757.

It can be written as a sum of positive squares in 4 ways, for example, as 60744996225 + 15001105441 = 246465^2 + 122479^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044985 + ... + 1115116.

Almost surely, 2^75746101666 is an apocalyptic number.

75746101666 is a deficient number, since it is larger than the sum of its proper divisors (39732951254).

75746101666 is a wasteful number, since it uses less digits than its factorization.

75746101666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160389.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 75746101666 in words is "seventy-five billion, seven hundred forty-six million, one hundred one thousand, six hundred sixty-six".