652776154746642 has 32 divisors (see below), whose sum is σ = 1458208513244160. Its totient is φ = 216452826177840.

The previous prime is 652776154746619. The next prime is 652776154746763. The reversal of 652776154746642 is 246647451677256.

652776154746642 is a `hidden beast` number, since 6 + 5 + 2 + 7 + 7 + 6 + 154 + 7 + 466 + 4 + 2 = 666.

It is a super-2 number, since 2×652776154746642² (a number of 30 digits) contains 22 as substring.

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, 31645139713 + ... + 31645160340.

It is an arithmetic number, because the mean of its divisors is an integer number (45569016038880).

Almost surely, 2^{652776154746642} is an apocalyptic number.

652776154746642 is an abundant number, since it is smaller than the sum of its proper divisors (805432358497518).

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

652776154746642 is a wasteful number, since it uses less digits than its factorization.

652776154746642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63290300255 (or 63290300249 counting only the distinct ones).

The product of its digits is 2844979200, while the sum is 72.

The spelling of 652776154746642 in words is "six hundred fifty-two trillion, seven hundred seventy-six billion, one hundred fifty-four million, seven hundred forty-six thousand, six hundred forty-two".