165190622472 has 108 divisors (see below), whose sum is σ = 472364861085. Its totient is φ = 52144767360.

The previous prime is 165190622459. The next prime is 165190622489. The reversal of 165190622472 is 274226091561.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

165190622472 is a `hidden beast` number, since 1 + 6 + 5 + 19 + 0 + 622 + 4 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87245799876 + 77944822596 = 295374^2 + 279186^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=287394.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 65524572 + ... + 65527092.

Almost surely, 2^165190622472 is an apocalyptic number.

165190622472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165190622472

165190622472 is an abundant number, since it is smaller than the sum of its proper divisors (307174238613).

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

165190622472 is an equidigital number, since it uses as much as digits as its factorization.

165190622472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 165190622472 in words is "one hundred sixty-five billion, one hundred ninety million, six hundred twenty-two thousand, four hundred seventy-two".