64541514164 has 12 divisors (see below), whose sum is σ = 112955600100. Its totient is φ = 32268485568.

The previous prime is 64541514157. The next prime is 64541514227. The reversal of 64541514164 is 46141514546.

It can be written as a sum of positive squares in 2 ways, for example, as 7964134564 + 56577379600 = 89242^2 + 237860^2 .

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, 503129 + ... + 618240.

It is an arithmetic number, because the mean of its divisors is an integer number (9412966675).

Almost surely, 2^64541514164 is an apocalyptic number.

It is an amenable number.

64541514164 is a deficient number, since it is larger than the sum of its proper divisors (48414085936).

64541514164 is a wasteful number, since it uses less digits than its factorization.

64541514164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135762 (or 1135760 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The spelling of 64541514164 in words is "sixty-four billion, five hundred forty-one million, five hundred fourteen thousand, one hundred sixty-four".