16442535944 has 16 divisors (see below), whose sum is σ = 30862119420. Its totient is φ = 8212637440.

The previous prime is 16442535919. The next prime is 16442535953. The reversal of 16442535944 is 44953524461.

It can be written as a sum of positive squares in 2 ways, for example, as 16093967044 + 348568900 = 126862^2 + 18670^2 .

It is a super-3 number, since 3×16442535944³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070717 + ... + 1085964.

Almost surely, 2^16442535944 is an apocalyptic number.

It is an amenable number.

16442535944 is a deficient number, since it is larger than the sum of its proper divisors (14419583476).

16442535944 is a wasteful number, since it uses less digits than its factorization.

16442535944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157640 (or 2157636 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The spelling of 16442535944 in words is "sixteen billion, four hundred forty-two million, five hundred thirty-five thousand, nine hundred forty-four".