16451521470345 has 64 divisors (see below), whose sum is σ = 29821757817600. Its totient is φ = 7687386147840.

The previous prime is 16451521470331. The next prime is 16451521470353. The reversal of 16451521470345 is 54307412515461.

It is not a de Polignac number, because 16451521470345 - 2²¹ = 16451519373193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16451521470294 and 16451521470303.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24320586 + ... + 24987875.

It is an arithmetic number, because the mean of its divisors is an integer number (465964965900).

Almost surely, 2^{16451521470345} is an apocalyptic number.

16451521470345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16451521470345 is a deficient number, since it is larger than the sum of its proper divisors (13370236347255).

16451521470345 is a wasteful number, since it uses less digits than its factorization.

16451521470345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49308570.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 16451521470345 in words is "sixteen trillion, four hundred fifty-one billion, five hundred twenty-one million, four hundred seventy thousand, three hundred forty-five".