165662875610 has 8 divisors (see below), whose sum is σ = 298193176116. Its totient is φ = 66265150240.

The previous prime is 165662875603. The next prime is 165662875621. The reversal of 165662875610 is 16578266561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 146082190849 + 19580684761 = 382207^2 + 139931^2 .

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, 8283143771 + ... + 8283143790.

Almost surely, 2^165662875610 is an apocalyptic number.

165662875610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165662875610 is a deficient number, since it is larger than the sum of its proper divisors (132530300506).

165662875610 is a wasteful number, since it uses less digits than its factorization.

165662875610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16566287568.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 165662875610 in words is "one hundred sixty-five billion, six hundred sixty-two million, eight hundred seventy-five thousand, six hundred ten".