16691760834 has 32 divisors (see below), whose sum is σ = 38675241600. Its totient is φ = 4703743872.

The previous prime is 16691760823. The next prime is 16691760847. The reversal of 16691760834 is 43806719661.

It is a happy number.

It is a super-2 number, since 2×16691760834² (a number of 21 digits) contains 22 as substring.

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, 2719009 + ... + 2725140.

It is an arithmetic number, because the mean of its divisors is an integer number (1208601300).

Almost surely, 2^16691760834 is an apocalyptic number.

16691760834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16691760834 is an abundant number, since it is smaller than the sum of its proper divisors (21983480766).

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

16691760834 is a wasteful number, since it uses less digits than its factorization.

16691760834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444234.

The product of its (nonzero) digits is 1306368, while the sum is 51.

It can be divided in two parts, 1669 and 1760834, that added together give a triangular number (1762503 = T₁₈₇₇).

The spelling of 16691760834 in words is "sixteen billion, six hundred ninety-one million, seven hundred sixty thousand, eight hundred thirty-four".