16662521106 has 72 divisors (see below), whose sum is σ = 45351476352. Its totient is φ = 4327923600.

The previous prime is 16662521093. The next prime is 16662521137. The reversal of 16662521106 is 60112526661.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 531210 + ... + 561701.

It is an arithmetic number, because the mean of its divisors is an integer number (629881616).

Almost surely, 2^16662521106 is an apocalyptic number.

16662521106 is an abundant number, since it is smaller than the sum of its proper divisors (28688955246).

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

16662521106 is a wasteful number, since it uses less digits than its factorization.

16662521106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092948 (or 1092934 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 16662521106 in words is "sixteen billion, six hundred sixty-two million, five hundred twenty-one thousand, one hundred six".