16506545622 has 48 divisors (see below), whose sum is σ = 39296106432. Its totient is φ = 4606474320.

The previous prime is 16506545617. The next prime is 16506545647. The reversal of 16506545622 is 22654560561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 640204 + ... + 665487.

It is an arithmetic number, because the mean of its divisors is an integer number (818668884).

Almost surely, 2^16506545622 is an apocalyptic number.

16506545622 is an abundant number, since it is smaller than the sum of its proper divisors (22789560810).

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

16506545622 is a wasteful number, since it uses less digits than its factorization.

16506545622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305753 (or 1305746 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 16506545622 in words is "sixteen billion, five hundred six million, five hundred forty-five thousand, six hundred twenty-two".