75001660 has 48 divisors (see below), whose sum is σ = 163207296. Its totient is φ = 28933632.

The previous prime is 75001657. The next prime is 75001673. The reversal of 75001660 is 6610057.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68074 + ... + 69166.

It is an arithmetic number, because the mean of its divisors is an integer number (3400152).

Almost surely, 2^75001660 is an apocalyptic number.

It is an amenable number.

75001660 is an abundant number, since it is smaller than the sum of its proper divisors (88205636).

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

75001660 is a wasteful number, since it uses less digits than its factorization.

75001660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 75001660 is about 8660.3498774588. The cubic root of 75001660 is about 421.7194439573.

The spelling of 75001660 in words is "seventy-five million, one thousand, six hundred sixty".