16775120 has 40 divisors (see below), whose sum is σ = 39194664. Its totient is φ = 6676992.

The previous prime is 16775093. The next prime is 16775131. The reversal of 16775120 is 2157761.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 16096144 = 824^2 + 4012^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 21782 + ... + 22538.

Almost surely, 2^16775120 is an apocalyptic number.

16775120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16775120 is an abundant number, since it is smaller than the sum of its proper divisors (22419544).

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

16775120 is a wasteful number, since it uses less digits than its factorization.

16775120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 16775120 is about 4095.7441326333. The cubic root of 16775120 is about 255.9893387487.

The spelling of 16775120 in words is "sixteen million, seven hundred seventy-five thousand, one hundred twenty".