16936865520 has 40 divisors (see below), whose sum is σ = 52504283856. Its totient is φ = 4516497408.

The previous prime is 16936865443. The next prime is 16936865591. The reversal of 16936865520 is 2556863961.

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, 35284897 + ... + 35285376.

Almost surely, 2^16936865520 is an apocalyptic number.

16936865520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16936865520 is an abundant number, since it is smaller than the sum of its proper divisors (35567418336).

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

16936865520 is a wasteful number, since it uses less digits than its factorization.

16936865520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70570289 (or 70570283 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

It can be divided in two parts, 16936 and 865520, that added together give a triangular number (882456 = T₁₃₂₈).

The spelling of 16936865520 in words is "sixteen billion, nine hundred thirty-six million, eight hundred sixty-five thousand, five hundred twenty".