64575657546 has 32 divisors (see below), whose sum is σ = 130499883648. Its totient is φ = 21300686400.

The previous prime is 64575657527. The next prime is 64575657569.

It is a happy number.

64575657546 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 64575657546.

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, 1143835 + ... + 1198961.

It is an arithmetic number, because the mean of its divisors is an integer number (4078121364).

Almost surely, 2^64575657546 is an apocalyptic number.

64575657546 is an abundant number, since it is smaller than the sum of its proper divisors (65924226102).

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

64575657546 is a wasteful number, since it uses less digits than its factorization.

64575657546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57166.

The product of its digits is 105840000, while the sum is 60.

The spelling of 64575657546 in words is "sixty-four billion, five hundred seventy-five million, six hundred fifty-seven thousand, five hundred forty-six".