665147242036 has 12 divisors (see below), whose sum is σ = 1164798987520. Its totient is φ = 332347531320.

The previous prime is 665147242007. The next prime is 665147242037. The reversal of 665147242036 is 630242741566.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665147242037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56515806 + ... + 56527573.

Almost surely, 2^665147242036 is an apocalyptic number.

It is an amenable number.

665147242036 is a deficient number, since it is larger than the sum of its proper divisors (499651745484).

665147242036 is a wasteful number, since it uses less digits than its factorization.

665147242036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113044854 (or 113044852 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 665147242036 in words is "six hundred sixty-five billion, one hundred forty-seven million, two hundred forty-two thousand, thirty-six".