161772202747000 has 64 divisors (see below), whose sum is σ = 378549156248640. Its totient is φ = 64708504720000.

The previous prime is 161772202746997. The next prime is 161772202747031. The reversal of 161772202747000 is 747202277161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226039725 + ... + 226754275.

It is an arithmetic number, because the mean of its divisors is an integer number (5914830566385).

Almost surely, 2^{161772202747000} is an apocalyptic number.

161772202747000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161772202747000 is an abundant number, since it is smaller than the sum of its proper divisors (216776953501640).

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

161772202747000 is a wasteful number, since it uses less digits than its factorization.

161772202747000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940969 (or 940955 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 46.

The spelling of 161772202747000 in words is "one hundred sixty-one trillion, seven hundred seventy-two billion, two hundred two million, seven hundred forty-seven thousand".