652991366 has 16 divisors (see below), whose sum is σ = 995115264. Its totient is φ = 321325704.

The previous prime is 652991363. The next prime is 652991393. The reversal of 652991366 is 663199256.

It is a self number, because there is not a number n which added to its sum of digits gives 652991366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652991363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23855 + ... + 43301.

It is an arithmetic number, because the mean of its divisors is an integer number (62194704).

Almost surely, 2^652991366 is an apocalyptic number.

652991366 is a deficient number, since it is larger than the sum of its proper divisors (342123898).

652991366 is a wasteful number, since it uses less digits than its factorization.

652991366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19715.

The product of its digits is 524880, while the sum is 47.

The square root of 652991366 is about 25553.6957405382. The cubic root of 652991366 is about 867.5659121576.

The spelling of 652991366 in words is "six hundred fifty-two million, nine hundred ninety-one thousand, three hundred sixty-six".