861166674 has 32 divisors (see below), whose sum is σ = 1921011840. Its totient is φ = 285959376.

The previous prime is 861166661. The next prime is 861166681. The reversal of 861166674 is 476661168.

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, 16117 + ... + 44520.

It is an arithmetic number, because the mean of its divisors is an integer number (60031620).

Almost surely, 2^861166674 is an apocalyptic number.

861166674 is an abundant number, since it is smaller than the sum of its proper divisors (1059845166).

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

861166674 is a wasteful number, since it uses less digits than its factorization.

861166674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60911 (or 60905 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 861166674 is about 29345.6414821690. The cubic root of 861166674 is about 951.3983742314.

The spelling of 861166674 in words is "eight hundred sixty-one million, one hundred sixty-six thousand, six hundred seventy-four".