651156505072 has 20 divisors (see below), whose sum is σ = 1261628722816. Its totient is φ = 325574899200.

The previous prime is 651156505061. The next prime is 651156505099. The reversal of 651156505072 is 270505651156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311072 + ... + 2577472.

Almost surely, 2^651156505072 is an apocalyptic number.

It is an amenable number.

651156505072 is a deficient number, since it is larger than the sum of its proper divisors (610472217744).

651156505072 is a wasteful number, since it uses less digits than its factorization.

651156505072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419176 (or 419170 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 651156505072 in words is "six hundred fifty-one billion, one hundred fifty-six million, five hundred five thousand, seventy-two".