16536433446 has 32 divisors (see below), whose sum is σ = 39574372320. Its totient is φ = 5088133152.

The previous prime is 16536433429. The next prime is 16536433481. The reversal of 16536433446 is 64433463561.

16536433446 is a `hidden beast` number, since 1 + 6 + 536 + 43 + 34 + 46 = 666.

It is a super-2 number, since 2×16536433446² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11777385 + ... + 11778788.

It is an arithmetic number, because the mean of its divisors is an integer number (1236699135).

Almost surely, 2^16536433446 is an apocalyptic number.

16536433446 is an abundant number, since it is smaller than the sum of its proper divisors (23037938874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16536433446 is a wasteful number, since it uses less digits than its factorization.

16536433446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23556197 (or 23556191 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

The spelling of 16536433446 in words is "sixteen billion, five hundred thirty-six million, four hundred thirty-three thousand, four hundred forty-six".