651626666252 has 12 divisors (see below), whose sum is σ = 1140596390640. Its totient is φ = 325741983216.

The previous prime is 651626666177. The next prime is 651626666261. The reversal of 651626666252 is 252666626156.

It is a junction number, because it is equal to n+sod(n) for n = 651626666194 and 651626666203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17816927 + ... + 17853462.

It is an arithmetic number, because the mean of its divisors is an integer number (95049699220).

Almost surely, 2^651626666252 is an apocalyptic number.

It is an amenable number.

651626666252 is a deficient number, since it is larger than the sum of its proper divisors (488969724388).

651626666252 is a wasteful number, since it uses less digits than its factorization.

651626666252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35674960 (or 35674958 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 53.

The spelling of 651626666252 in words is "six hundred fifty-one billion, six hundred twenty-six million, six hundred sixty-six thousand, two hundred fifty-two".