16551030500 has 24 divisors (see below), whose sum is σ = 36147451704. Its totient is φ = 6620412000.

The previous prime is 16551030499. The next prime is 16551030521. The reversal of 16551030500 is 503015561.

It can be written as a sum of positive squares in 4 ways, for example, as 3359129764 + 13191900736 = 57958^2 + 114856^2 .

It is a super-2 number, since 2×16551030500² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16551030500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16550531 + ... + 16551530.

It is an arithmetic number, because the mean of its divisors is an integer number (1506143821).

Almost surely, 2^16551030500 is an apocalyptic number.

16551030500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16551030500 is an abundant number, since it is smaller than the sum of its proper divisors (19596421204).

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

16551030500 is a wasteful number, since it uses less digits than its factorization.

16551030500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33102080 (or 33102068 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 16551030500 in words is "sixteen billion, five hundred fifty-one million, thirty thousand, five hundred".