196694666856 has 48 divisors (see below), whose sum is σ = 532836027360. Its totient is φ = 65549959200.

The previous prime is 196694666827. The next prime is 196694666873. The reversal of 196694666856 is 658666496691.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 9631 + ... + 627281.

It is an arithmetic number, because the mean of its divisors is an integer number (11100750570).

Almost surely, 2^196694666856 is an apocalyptic number.

It is an amenable number.

196694666856 is an abundant number, since it is smaller than the sum of its proper divisors (336141360504).

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

196694666856 is a wasteful number, since it uses less digits than its factorization.

196694666856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622086 (or 622079 counting only the distinct ones).

The product of its digits is 604661760, while the sum is 72.

The spelling of 196694666856 in words is "one hundred ninety-six billion, six hundred ninety-four million, six hundred sixty-six thousand, eight hundred fifty-six".