64475636000 has 48 divisors (see below), whose sum is σ = 158416647480. Its totient is φ = 25790252800.

The previous prime is 64475635981. The next prime is 64475636011. The reversal of 64475636000 is 63657446.

It can be written as a sum of positive squares in 4 ways, for example, as 40573239184 + 23902396816 = 201428^2 + 154604^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8055455 + ... + 8063454.

Almost surely, 2^64475636000 is an apocalyptic number.

It is an amenable number.

64475636000 is an abundant number, since it is smaller than the sum of its proper divisors (93941011480).

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

64475636000 is a wasteful number, since it uses less digits than its factorization.

64475636000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16118934 (or 16118916 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 64475636000 in words is "sixty-four billion, four hundred seventy-five million, six hundred thirty-six thousand".