665147274124 has 12 divisors (see below), whose sum is σ = 1164026184048. Its totient is φ = 332568364400.

The previous prime is 665147274109. The next prime is 665147274151. The reversal of 665147274124 is 421472741566.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027192 + ... + 1544479.

It is an arithmetic number, because the mean of its divisors is an integer number (97002182004).

Almost surely, 2^665147274124 is an apocalyptic number.

It is an amenable number.

665147274124 is a deficient number, since it is larger than the sum of its proper divisors (498878909924).

665147274124 is a wasteful number, since it uses less digits than its factorization.

665147274124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636336 (or 2636334 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

The spelling of 665147274124 in words is "six hundred sixty-five billion, one hundred forty-seven million, two hundred seventy-four thousand, one hundred twenty-four".