16800977090 has 32 divisors (see below), whose sum is σ = 32029052400. Its totient is φ = 6323421184.

The previous prime is 16800977041. The next prime is 16800977111. The reversal of 16800977090 is 9077900861.

It can be written as a sum of positive squares in 8 ways, for example, as 10646731489 + 6154245601 = 103183^2 + 78449^2 .

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, 783836 + ... + 804984.

Almost surely, 2^16800977090 is an apocalyptic number.

16800977090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16800977090 is a deficient number, since it is larger than the sum of its proper divisors (15228075310).

16800977090 is a wasteful number, since it uses less digits than its factorization.

16800977090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25846.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 16800977090 in words is "sixteen billion, eight hundred million, nine hundred seventy-seven thousand, ninety".