64642226664595 has 16 divisors (see below), whose sum is σ = 77973224323680. Its totient is φ = 51445417457664.

The previous prime is 64642226664539. The next prime is 64642226664607. The reversal of 64642226664595 is 59546662224646.

It is a cyclic number.

It is not a de Polignac number, because 64642226664595 - 2²¹ = 64642224567443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64642226664595.

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, 182977636 + ... + 183330574.

It is an arithmetic number, because the mean of its divisors is an integer number (4873326520230).

Almost surely, 2^{64642226664595} is an apocalyptic number.

64642226664595 is a deficient number, since it is larger than the sum of its proper divisors (13330997659085).

64642226664595 is a wasteful number, since it uses less digits than its factorization.

64642226664595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542934.

The product of its digits is 895795200, while the sum is 67.

The spelling of 64642226664595 in words is "sixty-four trillion, six hundred forty-two billion, two hundred twenty-six million, six hundred sixty-four thousand, five hundred ninety-five".