16449088516 has 27 divisors (see below), whose sum is σ = 33489300117. Its totient is φ = 7048839840.

The previous prime is 16449088459. The next prime is 16449088541. The reversal of 16449088516 is 61588094461.

The square root of 16449088516 is 128254.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5482810116 + 10966278400 = 74046^2 + 104720^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1790976 + ... + 1800136.

Almost surely, 2^16449088516 is an apocalyptic number.

16449088516 is the 128254-th square number.

It is an amenable number.

16449088516 is an abundant number, since it is smaller than the sum of its proper divisors (17040211601).

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

16449088516 is an frugal number, since it uses more digits than its factorization.

16449088516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18340 (or 9170 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 16449088516 in words is "sixteen billion, four hundred forty-nine million, eighty-eight thousand, five hundred sixteen".