2195161876656 has 80 divisors (see below), whose sum is σ = 7201060134400. Its totient is φ = 627189106752.

The previous prime is 2195161876619. The next prime is 2195161876673. The reversal of 2195161876656 is 6566781615912.

2195161876656 is a `hidden beast` number, since 2 + 1 + 9 + 5 + 1 + 618 + 7 + 6 + 6 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 2195161876593 and 2195161876602.

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, 362953636 + ... + 362959683.

It is an arithmetic number, because the mean of its divisors is an integer number (90013251680).

Almost surely, 2^{2195161876656} is an apocalyptic number.

It is an amenable number.

2195161876656 is an abundant number, since it is smaller than the sum of its proper divisors (5005898257744).

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

2195161876656 is a wasteful number, since it uses less digits than its factorization.

2195161876656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725913343 (or 725913331 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 2195161876656 in words is "two trillion, one hundred ninety-five billion, one hundred sixty-one million, eight hundred seventy-six thousand, six hundred fifty-six".