652322651620 has 12 divisors (see below), whose sum is σ = 1369877568444. Its totient is φ = 260929060640.

The previous prime is 652322651609. The next prime is 652322651623. The reversal of 652322651620 is 26156223256.

It can be written as a sum of positive squares in 2 ways, for example, as 133032349696 + 519290301924 = 364736^2 + 720618^2 .

It is not an unprimeable number, because it can be changed into a prime (652322651623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16308066271 + ... + 16308066310.

It is an arithmetic number, because the mean of its divisors is an integer number (114156464037).

Almost surely, 2^652322651620 is an apocalyptic number.

It is an amenable number.

652322651620 is an abundant number, since it is smaller than the sum of its proper divisors (717554916824).

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

652322651620 is a wasteful number, since it uses less digits than its factorization.

652322651620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32616132590 (or 32616132588 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 652322651620 its reverse (26156223256), we get a palindrome (678478874876).

The spelling of 652322651620 in words is "six hundred fifty-two billion, three hundred twenty-two million, six hundred fifty-one thousand, six hundred twenty".