16564219298490 has 128 divisors (see below), whose sum is σ = 44685864345600. Its totient is φ = 3910012888320.

The previous prime is 16564219298477. The next prime is 16564219298537. The reversal of 16564219298490 is 9489291246561.

It is a happy number.

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, 15649992 + ... + 16674851.

It is an arithmetic number, because the mean of its divisors is an integer number (349108315200).

Almost surely, 2^{16564219298490} is an apocalyptic number.

16564219298490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16564219298490 is an abundant number, since it is smaller than the sum of its proper divisors (28121645047110).

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

16564219298490 is a wasteful number, since it uses less digits than its factorization.

16564219298490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32324932.

The product of its (nonzero) digits is 67184640, while the sum is 66.

The spelling of 16564219298490 in words is "sixteen trillion, five hundred sixty-four billion, two hundred nineteen million, two hundred ninety-eight thousand, four hundred ninety".