664552236047074 has 8 divisors (see below), whose sum is σ = 996828474037248. Its totient is φ = 332276078034660.

The previous prime is 664552236047047. The next prime is 664552236047087. The reversal of 664552236047074 is 470740632255466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×664552236047074² (a number of 30 digits) contains 22 as substring.

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, 9451839 + ... + 37662205.

It is an arithmetic number, because the mean of its divisors is an integer number (124603559254656).

Almost surely, 2^{664552236047074} is an apocalyptic number.

664552236047074 is a deficient number, since it is larger than the sum of its proper divisors (332276237990174).

664552236047074 is a wasteful number, since it uses less digits than its factorization.

664552236047074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39988880.

The product of its (nonzero) digits is 203212800, while the sum is 61.

The spelling of 664552236047074 in words is "six hundred sixty-four trillion, five hundred fifty-two billion, two hundred thirty-six million, forty-seven thousand, seventy-four".