16451376557145 has 24 divisors (see below), whose sum is σ = 27516404508096. Its totient is φ = 8392586297568.

The previous prime is 16451376557137. The next prime is 16451376557167. The reversal of 16451376557145 is 54175567315461.

It is not a de Polignac number, because 16451376557145 - 2³ = 16451376557137 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1036625749 + ... + 1036641618.

It is an arithmetic number, because the mean of its divisors is an integer number (1146516854504).

Almost surely, 2^{16451376557145} is an apocalyptic number.

16451376557145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16451376557145 is a deficient number, since it is larger than the sum of its proper divisors (11065027950951).

16451376557145 is a wasteful number, since it uses less digits than its factorization.

16451376557145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073267421 (or 2073267398 counting only the distinct ones).

The product of its digits is 52920000, while the sum is 60.

The spelling of 16451376557145 in words is "sixteen trillion, four hundred fifty-one billion, three hundred seventy-six million, five hundred fifty-seven thousand, one hundred forty-five".