16456312442 has 4 divisors (see below), whose sum is σ = 24684468666. Its totient is φ = 8228156220.

The previous prime is 16456312441. The next prime is 16456312493. The reversal of 16456312442 is 24421365461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24421365461 = 3361 ⋅7266101.

It can be written as a sum of positive squares in only one way, i.e., 13567357441 + 2888955001 = 116479^2 + 53749^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16456312396 and 16456312405.

It is not an unprimeable number, because it can be changed into a prime (16456312441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114078109 + ... + 4114078112.

Almost surely, 2^16456312442 is an apocalyptic number.

16456312442 is a deficient number, since it is larger than the sum of its proper divisors (8228156224).

16456312442 is an equidigital number, since it uses as much as digits as its factorization.

16456312442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228156223.

The product of its digits is 138240, while the sum is 38.

The spelling of 16456312442 in words is "sixteen billion, four hundred fifty-six million, three hundred twelve thousand, four hundred forty-two".