663151431 has 8 divisors (see below), whose sum is σ = 896655744. Its totient is φ = 435874040.

The previous prime is 663151429. The next prime is 663151441. The reversal of 663151431 is 134151366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663151431 - 2¹ = 663151429 is a prime.

It is a super-2 number, since 2×663151431² = 879539640874695522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663151421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556481 + ... + 1556906.

It is an arithmetic number, because the mean of its divisors is an integer number (112081968).

Almost surely, 2^663151431 is an apocalyptic number.

663151431 is a deficient number, since it is larger than the sum of its proper divisors (233504313).

663151431 is a wasteful number, since it uses less digits than its factorization.

663151431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113461.

The product of its digits is 6480, while the sum is 30.

The square root of 663151431 is about 25751.7267576370. The cubic root of 663151431 is about 872.0423375167.

The spelling of 663151431 in words is "six hundred sixty-three million, one hundred fifty-one thousand, four hundred thirty-one".