64101591082 has 4 divisors (see below), whose sum is σ = 96152386626. Its totient is φ = 32050795540.

The previous prime is 64101591067. The next prime is 64101591131. The reversal of 64101591082 is 28019510146.

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., 38770003801 + 25331587281 = 196901^2 + 159159^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16025397769 + ... + 16025397772.

Almost surely, 2^64101591082 is an apocalyptic number.

64101591082 is a deficient number, since it is larger than the sum of its proper divisors (32050795544).

64101591082 is a wasteful number, since it uses less digits than its factorization.

64101591082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32050795543.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 64101591082 in words is "sixty-four billion, one hundred one million, five hundred ninety-one thousand, eighty-two".