16765173240 has 64 divisors (see below), whose sum is σ = 51917967360. Its totient is φ = 4326495360.

The previous prime is 16765173233. The next prime is 16765173259. The reversal of 16765173240 is 4237156761.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16765173192 and 16765173201.

It is a congruent number.

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, 2249664 + ... + 2257103.

It is an arithmetic number, because the mean of its divisors is an integer number (811218240).

Almost surely, 2^16765173240 is an apocalyptic number.

16765173240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16765173240 is an abundant number, since it is smaller than the sum of its proper divisors (35152794120).

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

16765173240 is a wasteful number, since it uses less digits than its factorization.

16765173240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506812 (or 4506808 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 16765173240 in words is "sixteen billion, seven hundred sixty-five million, one hundred seventy-three thousand, two hundred forty".