16320755085544 has 64 divisors (see below), whose sum is σ = 37666862956800. Its totient is φ = 6455948396544.

The previous prime is 16320755085533. The next prime is 16320755085553. The reversal of 16320755085544 is 44558055702361.

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, 6631992 + ... + 8753560.

It is an arithmetic number, because the mean of its divisors is an integer number (588544733700).

Almost surely, 2^{16320755085544} is an apocalyptic number.

16320755085544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16320755085544 is an abundant number, since it is smaller than the sum of its proper divisors (21346107871256).

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

16320755085544 is a wasteful number, since it uses less digits than its factorization.

16320755085544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132162 (or 2132158 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 55.

The spelling of 16320755085544 in words is "sixteen trillion, three hundred twenty billion, seven hundred fifty-five million, eighty-five thousand, five hundred forty-four".