210620161028 has 6 divisors (see below), whose sum is σ = 368585281806. Its totient is φ = 105310080512.

The previous prime is 210620160991. The next prime is 210620161043. The reversal of 210620161028 is 820161026012.

It can be written as a sum of positive squares in only one way, i.e., 210578196544 + 41964484 = 458888^2 + 6478^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26327520125 + ... + 26327520132.

It is an arithmetic number, because the mean of its divisors is an integer number (61430880301).

Almost surely, 2^210620161028 is an apocalyptic number.

It is an amenable number.

210620161028 is a deficient number, since it is larger than the sum of its proper divisors (157965120778).

210620161028 is a wasteful number, since it uses less digits than its factorization.

210620161028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52655040261 (or 52655040259 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 210620161028 in words is "two hundred ten billion, six hundred twenty million, one hundred sixty-one thousand, twenty-eight".