210661500161562 has 16 divisors (see below), whose sum is σ = 421391363694240. Its totient is φ = 70209106158672.

The previous prime is 210661500161501. The next prime is 210661500161597. The reversal of 210661500161562 is 265161005166012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2848433737 + ... + 2848507692.

It is an arithmetic number, because the mean of its divisors is an integer number (26336960230890).

Almost surely, 2^{210661500161562} is an apocalyptic number.

210661500161562 is an abundant number, since it is smaller than the sum of its proper divisors (210729863532678).

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

210661500161562 is a wasteful number, since it uses less digits than its factorization.

210661500161562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696947597.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 210661500161562 in words is "two hundred ten trillion, six hundred sixty-one billion, five hundred million, one hundred sixty-one thousand, five hundred sixty-two".