652091557320 has 512 divisors, whose sum is σ = 2728608768000. Its totient is φ = 135064765440.

The previous prime is 652091557319. The next prime is 652091557331. The reversal of 652091557320 is 23755190256.

652091557320 is a `hidden beast` number, since 6 + 5 + 2 + 0 + 91 + 557 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3205030 + ... + 3402410.

It is an arithmetic number, because the mean of its divisors is an integer number (5329314000).

Almost surely, 2^652091557320 is an apocalyptic number.

652091557320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652091557320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364304384000).

652091557320 is an abundant number, since it is smaller than the sum of its proper divisors (2076517210680).

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

652091557320 is a wasteful number, since it uses less digits than its factorization.

652091557320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197450 (or 197440 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 652091557320 in words is "six hundred fifty-two billion, ninety-one million, five hundred fifty-seven thousand, three hundred twenty".