2157770162 has 8 divisors (see below), whose sum is σ = 3377379456. Its totient is φ = 1031977012.

The previous prime is 2157770149. The next prime is 2157770177. The reversal of 2157770162 is 2610777512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23453978 + ... + 23454069.

It is an arithmetic number, because the mean of its divisors is an integer number (422172432).

Almost surely, 2^2157770162 is an apocalyptic number.

2157770162 is a deficient number, since it is larger than the sum of its proper divisors (1219609294).

2157770162 is a wasteful number, since it uses less digits than its factorization.

2157770162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46908072.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 2157770162 is about 46451.8047227446. The cubic root of 2157770162 is about 1292.2158423144.

The spelling of 2157770162 in words is "two billion, one hundred fifty-seven million, seven hundred seventy thousand, one hundred sixty-two".