651688133552 has 10 divisors (see below), whose sum is σ = 1262645758788. Its totient is φ = 325844066768.

The previous prime is 651688133549. The next prime is 651688133557. The reversal of 651688133552 is 255331886156.

It is a junction number, because it is equal to n+sod(n) for n = 651688133494 and 651688133503.

It is not an unprimeable number, because it can be changed into a prime (651688133557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20365254158 + ... + 20365254189.

Almost surely, 2^651688133552 is an apocalyptic number.

It is an amenable number.

651688133552 is a deficient number, since it is larger than the sum of its proper divisors (610957625236).

651688133552 is a wasteful number, since it uses less digits than its factorization.

651688133552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40730508355 (or 40730508349 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 53.

The spelling of 651688133552 in words is "six hundred fifty-one billion, six hundred eighty-eight million, one hundred thirty-three thousand, five hundred fifty-two".