16440946234 has 4 divisors (see below), whose sum is σ = 24661419354. Its totient is φ = 8220473116.

The previous prime is 16440946201. The next prime is 16440946253. The reversal of 16440946234 is 43264904461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43264904461 = 109 ⋅396925729.

It can be written as a sum of positive squares in only one way, i.e., 16398083025 + 42863209 = 128055^2 + 6547^2 .

It is a super-3 number, since 3×16440946234³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110236557 + ... + 4110236560.

Almost surely, 2^16440946234 is an apocalyptic number.

16440946234 is a deficient number, since it is larger than the sum of its proper divisors (8220473120).

16440946234 is an equidigital number, since it uses as much as digits as its factorization.

16440946234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8220473119.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 16440946234 in words is "sixteen billion, four hundred forty million, nine hundred forty-six thousand, two hundred thirty-four".