64001522223 has 32 divisors (see below), whose sum is σ = 99722465280. Its totient is φ = 40512195360.

The previous prime is 64001522219. The next prime is 64001522231. The reversal of 64001522223 is 32222510046.

It is a happy number.

64001522223 is a `hidden beast` number, since 6 + 400 + 15 + 22 + 223 = 666.

It is not a de Polignac number, because 64001522223 - 2² = 64001522219 is a prime.

It is a super-2 number, since 2×64001522223² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64001522623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677011 + ... + 765732.

It is an arithmetic number, because the mean of its divisors is an integer number (3116327040).

Almost surely, 2^64001522223 is an apocalyptic number.

64001522223 is a deficient number, since it is larger than the sum of its proper divisors (35720943057).

64001522223 is a wasteful number, since it uses less digits than its factorization.

64001522223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442836 (or 1442830 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 64001522223 in words is "sixty-four billion, one million, five hundred twenty-two thousand, two hundred twenty-three".