663151431907 has 2 divisors, whose sum is σ = 663151431908. Its totient is φ = 663151431906.

The previous prime is 663151431881. The next prime is 663151431931. The reversal of 663151431907 is 709134151366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663151431907 - 2¹¹ = 663151429859 is a prime.

It is not a weakly prime, because it can be changed into another prime (663151491907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331575715953 + 331575715954.

It is an arithmetic number, because the mean of its divisors is an integer number (331575715954).

Almost surely, 2^663151431907 is an apocalyptic number.

663151431907 is a deficient number, since it is larger than the sum of its proper divisors (1).

663151431907 is an equidigital number, since it uses as much as digits as its factorization.

663151431907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 663151431907 in words is "six hundred sixty-three billion, one hundred fifty-one million, four hundred thirty-one thousand, nine hundred seven".