64476316569601 has 4 divisors (see below), whose sum is σ = 64480812526804. Its totient is φ = 64471820612400.

The previous prime is 64476316569571. The next prime is 64476316569619. The reversal of 64476316569601 is 10696561367446.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21526630502400 + 42949686067201 = 4639680^2 + 6553601^2 .

It is a cyclic number.

It is not a de Polignac number, because 64476316569601 - 2¹⁵ = 64476316536833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64476346569601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2247957090 + ... + 2247985771.

It is an arithmetic number, because the mean of its divisors is an integer number (16120203131701).

Almost surely, 2^{64476316569601} is an apocalyptic number.

It is an amenable number.

64476316569601 is a deficient number, since it is larger than the sum of its proper divisors (4495957203).

64476316569601 is a wasteful number, since it uses less digits than its factorization.

64476316569601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495957202.

The product of its (nonzero) digits is 117573120, while the sum is 64.

The spelling of 64476316569601 in words is "sixty-four trillion, four hundred seventy-six billion, three hundred sixteen million, five hundred sixty-nine thousand, six hundred one".