16520004266466 has 64 divisors (see below), whose sum is σ = 34118024878080. Its totient is φ = 5329779673920.

The previous prime is 16520004266461. The next prime is 16520004266477. The reversal of 16520004266466 is 66466240002561.

It is not an unprimeable number, because it can be changed into a prime (16520004266461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16749940 + ... + 17708768.

It is an arithmetic number, because the mean of its divisors is an integer number (533094138720).

Almost surely, 2^{16520004266466} is an apocalyptic number.

16520004266466 is an abundant number, since it is smaller than the sum of its proper divisors (17598020611614).

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

16520004266466 is a wasteful number, since it uses less digits than its factorization.

16520004266466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959559.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 16520004266466 in words is "sixteen trillion, five hundred twenty billion, four million, two hundred sixty-six thousand, four hundred sixty-six".