16451457475776 has 28 divisors (see below), whose sum is σ = 43527814571832. Its totient is φ = 5483819158528.

The previous prime is 16451457475763. The next prime is 16451457475777. The reversal of 16451457475776 is 67757475415461.

It is a self number, because there is not a number n which added to its sum of digits gives 16451457475776.

It is not an unprimeable number, because it can be changed into a prime (16451457475777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42842336985 + ... + 42842337368.

Almost surely, 2^{16451457475776} is an apocalyptic number.

16451457475776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16451457475776 is an abundant number, since it is smaller than the sum of its proper divisors (27076357096056).

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

16451457475776 is an equidigital number, since it uses as much as digits as its factorization.

16451457475776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85684674368 (or 85684674358 counting only the distinct ones).

The product of its digits is 691488000, while the sum is 69.

The spelling of 16451457475776 in words is "sixteen trillion, four hundred fifty-one billion, four hundred fifty-seven million, four hundred seventy-five thousand, seven hundred seventy-six".