75401660 has 12 divisors (see below), whose sum is σ = 158343528. Its totient is φ = 30160656.

The previous prime is 75401657. The next prime is 75401693. The reversal of 75401660 is 6610457.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1885022 + ... + 1885061.

It is an arithmetic number, because the mean of its divisors is an integer number (13195294).

Almost surely, 2^75401660 is an apocalyptic number.

It is an amenable number.

75401660 is an abundant number, since it is smaller than the sum of its proper divisors (82941868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75401660 is a wasteful number, since it uses less digits than its factorization.

75401660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770092 (or 3770090 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 75401660 is about 8683.4129234996. The cubic root of 75401660 is about 422.4678219719.

The spelling of 75401660 in words is "seventy-five million, four hundred one thousand, six hundred sixty".