16467661512 has 24 divisors (see below), whose sum is σ = 44599916790. Its totient is φ = 5489220480.

The previous prime is 16467661501. The next prime is 16467661517. The reversal of 16467661512 is 21516676461.

16467661512 is a `hidden beast` number, since 1 + 6 + 4 + 6 + 76 + 61 + 512 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15219169956 + 1248491556 = 123366^2 + 35334^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×16467661512² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16467661517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114358689 + ... + 114358832.

Almost surely, 2^16467661512 is an apocalyptic number.

16467661512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16467661512 is an abundant number, since it is smaller than the sum of its proper divisors (28132255278).

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

16467661512 is a wasteful number, since it uses less digits than its factorization.

16467661512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228717533 (or 228717526 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 16467661512 in words is "sixteen billion, four hundred sixty-seven million, six hundred sixty-one thousand, five hundred twelve".