652138905606 has 32 divisors (see below), whose sum is σ = 1340913032928. Its totient is φ = 211312047360.

The previous prime is 652138905577. The next prime is 652138905611. The reversal of 652138905606 is 606509831256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4717005 + ... + 4853288.

It is an arithmetic number, because the mean of its divisors is an integer number (41903532279).

Almost surely, 2^652138905606 is an apocalyptic number.

652138905606 is an abundant number, since it is smaller than the sum of its proper divisors (688774127322).

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

652138905606 is a wasteful number, since it uses less digits than its factorization.

652138905606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570616.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 652138905606 in words is "six hundred fifty-two billion, one hundred thirty-eight million, nine hundred five thousand, six hundred six".