16451377056345 has 64 divisors (see below), whose sum is σ = 33487033190400. Its totient is φ = 6836935896000.

The previous prime is 16451377056269. The next prime is 16451377056349. The reversal of 16451377056345 is 54365077315461.

It is not a de Polignac number, because 16451377056345 - 2¹¹ = 16451377054297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16451377056349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145286431 + ... + 145399620.

It is an arithmetic number, because the mean of its divisors is an integer number (523234893600).

Almost surely, 2^{16451377056345} is an apocalyptic number.

16451377056345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16451377056345 is an abundant number, since it is smaller than the sum of its proper divisors (17035656134055).

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

16451377056345 is a wasteful number, since it uses less digits than its factorization.

16451377056345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290686091 (or 290686077 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 57.

The spelling of 16451377056345 in words is "sixteen trillion, four hundred fifty-one billion, three hundred seventy-seven million, fifty-six thousand, three hundred forty-five".