456663136654623 has 4 divisors (see below), whose sum is σ = 608884182206168. Its totient is φ = 304442091103080.

The previous prime is 456663136654597. The next prime is 456663136654643. The reversal of 456663136654623 is 326456631366654.

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

It is not a de Polignac number, because 456663136654623 - 2¹⁰ = 456663136653599 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 (456663136654643) 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, 76110522775768 + ... + 76110522775773.

It is an arithmetic number, because the mean of its divisors is an integer number (152221045551542).

Almost surely, 2^{456663136654623} is an apocalyptic number.

456663136654623 is a deficient number, since it is larger than the sum of its proper divisors (152221045551545).

456663136654623 is a wasteful number, since it uses less digits than its factorization.

456663136654623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152221045551544.

The product of its digits is 1007769600, while the sum is 66.

The spelling of 456663136654623 in words is "four hundred fifty-six trillion, six hundred sixty-three billion, one hundred thirty-six million, six hundred fifty-four thousand, six hundred twenty-three".