64521376162 has 4 divisors (see below), whose sum is σ = 96782064246. Its totient is φ = 32260688080.

The previous prime is 64521376133. The next prime is 64521376169. The reversal of 64521376162 is 26167312546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54261509481 + 10259866681 = 232941^2 + 101291^2 .

It is not an unprimeable number, because it can be changed into a prime (64521376169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16130344039 + ... + 16130344042.

Almost surely, 2^64521376162 is an apocalyptic number.

64521376162 is a deficient number, since it is larger than the sum of its proper divisors (32260688084).

64521376162 is a wasteful number, since it uses less digits than its factorization.

64521376162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32260688083.

The product of its digits is 362880, while the sum is 43.

The spelling of 64521376162 in words is "sixty-four billion, five hundred twenty-one million, three hundred seventy-six thousand, one hundred sixty-two".