663525012364 has 6 divisors (see below), whose sum is σ = 1161168771644. Its totient is φ = 331762506180.

The previous prime is 663525012347. The next prime is 663525012401. The reversal of 663525012364 is 463210525366.

663525012364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 663525012364.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82940626542 + ... + 82940626549.

Almost surely, 2^663525012364 is an apocalyptic number.

It is an amenable number.

663525012364 is a deficient number, since it is larger than the sum of its proper divisors (497643759280).

663525012364 is a wasteful number, since it uses less digits than its factorization.

663525012364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165881253095 (or 165881253093 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 663525012364 in words is "six hundred sixty-three billion, five hundred twenty-five million, twelve thousand, three hundred sixty-four".