165714381650 has 12 divisors (see below), whose sum is σ = 308228749962. Its totient is φ = 66285752640.

The previous prime is 165714381631. The next prime is 165714381713. The reversal of 165714381650 is 56183417561.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 76009938601 + 89704443049 = 275699^2 + 299507^2 .

It is a super-2 number, since 2×165714381650² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 165714381595 and 165714381604.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1657143767 + ... + 1657143866.

Almost surely, 2^165714381650 is an apocalyptic number.

165714381650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165714381650 is a deficient number, since it is larger than the sum of its proper divisors (142514368312).

165714381650 is a wasteful number, since it uses less digits than its factorization.

165714381650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314287645 (or 3314287640 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 165714381650 in words is "one hundred sixty-five billion, seven hundred fourteen million, three hundred eighty-one thousand, six hundred fifty".