20162177196 has 72 divisors (see below), whose sum is σ = 56205048816. Its totient is φ = 5604923520.

The previous prime is 20162177143. The next prime is 20162177201. The reversal of 20162177196 is 69177126102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441615 + ... + 485126.

It is an arithmetic number, because the mean of its divisors is an integer number (780625678).

Almost surely, 2^20162177196 is an apocalyptic number.

It is an amenable number.

20162177196 is an abundant number, since it is smaller than the sum of its proper divisors (36042871620).

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

20162177196 is a wasteful number, since it uses less digits than its factorization.

20162177196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926799 (or 926790 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 20162177196 in words is "twenty billion, one hundred sixty-two million, one hundred seventy-seven thousand, one hundred ninety-six".