16905487320 has 80 divisors (see below), whose sum is σ = 56821232160. Its totient is φ = 4508129088.

The previous prime is 16905487307. The next prime is 16905487349. The reversal of 16905487320 is 2378450961.

16905487320 is a `hidden beast` number, since 16 + 9 + 0 + 548 + 73 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2605632 + ... + 2612111.

It is an arithmetic number, because the mean of its divisors is an integer number (710265402).

It is a 1-persistent number, because it is pandigital, but 2⋅16905487320 = 33810974640 is not.

Almost surely, 2^16905487320 is an apocalyptic number.

16905487320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16905487320 is an abundant number, since it is smaller than the sum of its proper divisors (39915744840).

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

16905487320 is a wasteful number, since it uses less digits than its factorization.

16905487320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217766 (or 5217753 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 16905487320 in words is "sixteen billion, nine hundred five million, four hundred eighty-seven thousand, three hundred twenty".