663596292431 has 4 divisors (see below), whose sum is σ = 679028764392. Its totient is φ = 648163820472.

The previous prime is 663596292371. The next prime is 663596292461. The reversal of 663596292431 is 134292695366.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663596292431 is a prime.

It is a super-2 number, since 2×663596292431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663596292461) 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, 7716235916 + ... + 7716236001.

It is an arithmetic number, because the mean of its divisors is an integer number (169757191098).

Almost surely, 2^663596292431 is an apocalyptic number.

663596292431 is a deficient number, since it is larger than the sum of its proper divisors (15432471961).

663596292431 is a wasteful number, since it uses less digits than its factorization.

663596292431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15432471960.

The product of its digits is 12597120, while the sum is 56.

The spelling of 663596292431 in words is "six hundred sixty-three billion, five hundred ninety-six million, two hundred ninety-two thousand, four hundred thirty-one".