165622922800 has 60 divisors (see below), whose sum is σ = 399662194536. Its totient is φ = 65957286400.

The previous prime is 165622922779. The next prime is 165622922821. The reversal of 165622922800 is 8229226561.

It is an interprime number because it is at equal distance from previous prime (165622922779) and next prime (165622922821).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821221 + ... + 1002820.

Almost surely, 2^165622922800 is an apocalyptic number.

165622922800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165622922800 is an abundant number, since it is smaller than the sum of its proper divisors (234039271736).

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

165622922800 is a wasteful number, since it uses less digits than its factorization.

165622922800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824286 (or 1824275 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 165622922800 in words is "one hundred sixty-five billion, six hundred twenty-two million, nine hundred twenty-two thousand, eight hundred".