16780832380 has 24 divisors (see below), whose sum is σ = 37950498432. Its totient is φ = 6195999552.

The previous prime is 16780832359. The next prime is 16780832401. The reversal of 16780832380 is 8323808761.

It is an interprime number because it is at equal distance from previous prime (16780832359) and next prime (16780832401).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16780832380.

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, 32270572 + ... + 32271091.

It is an arithmetic number, because the mean of its divisors is an integer number (1581270768).

Almost surely, 2^16780832380 is an apocalyptic number.

16780832380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16780832380 is an abundant number, since it is smaller than the sum of its proper divisors (21169666052).

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

16780832380 is a wasteful number, since it uses less digits than its factorization.

16780832380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64541685 (or 64541683 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 16780832380 in words is "sixteen billion, seven hundred eighty million, eight hundred thirty-two thousand, three hundred eighty".