652621636240 has 80 divisors (see below), whose sum is σ = 1755001922688. Its totient is φ = 221060118528.

The previous prime is 652621636229. The next prime is 652621636243. The reversal of 652621636240 is 42636126256.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (652621636243) 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, 6973977 + ... + 7066936.

Almost surely, 2^652621636240 is an apocalyptic number.

It is an amenable number.

652621636240 is an abundant number, since it is smaller than the sum of its proper divisors (1102380286448).

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

652621636240 is a wasteful number, since it uses less digits than its factorization.

652621636240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14041016 (or 14041010 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 652621636240 in words is "six hundred fifty-two billion, six hundred twenty-one million, six hundred thirty-six thousand, two hundred forty".