663134177076 has 48 divisors (see below), whose sum is σ = 1768472186880. Its totient is φ = 189454652640.

The previous prime is 663134177059. The next prime is 663134177081. The reversal of 663134177076 is 670771431366.

It is a happy number.

It is a congruent number.

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, 1093221 + ... + 1587891.

It is an arithmetic number, because the mean of its divisors is an integer number (36843170560).

Almost surely, 2^663134177076 is an apocalyptic number.

It is an amenable number.

663134177076 is an abundant number, since it is smaller than the sum of its proper divisors (1105338009804).

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

663134177076 is a wasteful number, since it uses less digits than its factorization.

663134177076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510644 (or 510642 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 51.

The spelling of 663134177076 in words is "six hundred sixty-three billion, one hundred thirty-four million, one hundred seventy-seven thousand, seventy-six".