664151463 has 12 divisors (see below), whose sum is σ = 959699728. Its totient is φ = 442596960.

The previous prime is 664151431. The next prime is 664151489. The reversal of 664151463 is 364151466.

It is a happy number.

664151463 is a `hidden beast` number, since 6 + 641 + 5 + 1 + 4 + 6 + 3 = 666.

It is not a de Polignac number, because 664151463 - 2⁵ = 664151431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664151413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13203 + ... + 38763.

Almost surely, 2^664151463 is an apocalyptic number.

664151463 is a deficient number, since it is larger than the sum of its proper divisors (295548265).

664151463 is a wasteful number, since it uses less digits than its factorization.

664151463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28454 (or 28451 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 664151463 is about 25771.1362380474. The cubic root of 664151463 is about 872.4804638171.

The spelling of 664151463 in words is "six hundred sixty-four million, one hundred fifty-one thousand, four hundred sixty-three".