651625552272 has 80 divisors (see below), whose sum is σ = 1686807930240. Its totient is φ = 216764875776.

The previous prime is 651625552271. The next prime is 651625552301. The reversal of 651625552272 is 272255526156.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (651625552271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50786754 + ... + 50799582.

It is an arithmetic number, because the mean of its divisors is an integer number (21085099128).

Almost surely, 2^651625552272 is an apocalyptic number.

It is an amenable number.

651625552272 is an abundant number, since it is smaller than the sum of its proper divisors (1035182377968).

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

651625552272 is a wasteful number, since it uses less digits than its factorization.

651625552272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14920 (or 14914 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 48.

The spelling of 651625552272 in words is "six hundred fifty-one billion, six hundred twenty-five million, five hundred fifty-two thousand, two hundred seventy-two".