75147664 has 20 divisors (see below), whose sum is σ = 145990656. Its totient is φ = 37472672.

The previous prime is 75147661. The next prime is 75147691. The reversal of 75147664 is 46674157.

It is not an unprimeable number, because it can be changed into a prime (75147661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4 + ... + 12259.

Almost surely, 2^75147664 is an apocalyptic number.

It is an amenable number.

75147664 is a deficient number, since it is larger than the sum of its proper divisors (70842992).

75147664 is a wasteful number, since it uses less digits than its factorization.

75147664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654 (or 12648 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 75147664 is about 8668.7752306771. The cubic root of 75147664 is about 421.9929170812.

The spelling of 75147664 in words is "seventy-five million, one hundred forty-seven thousand, six hundred sixty-four".