663622304026476 has 48 divisors (see below), whose sum is σ = 1629953387336960. Its totient is φ = 209564440712640.

The previous prime is 663622304026469. The next prime is 663622304026481. The reversal of 663622304026476 is 674620403226366.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99536946 + ... + 105994566.

Almost surely, 2^{663622304026476} is an apocalyptic number.

It is an amenable number.

663622304026476 is an abundant number, since it is smaller than the sum of its proper divisors (966331083310484).

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

663622304026476 is a wasteful number, since it uses less digits than its factorization.

663622304026476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908374 (or 6908372 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 57.

The spelling of 663622304026476 in words is "six hundred sixty-three trillion, six hundred twenty-two billion, three hundred four million, twenty-six thousand, four hundred seventy-six".