166519997050 has 96 divisors (see below), whose sum is σ = 342961441920. Its totient is φ = 59645030400.

The previous prime is 166519996999. The next prime is 166519997071. The reversal of 166519997050 is 50799915661.

166519997050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36895594 + ... + 36900106.

It is an arithmetic number, because the mean of its divisors is an integer number (3572515020).

Almost surely, 2^166519997050 is an apocalyptic number.

166519997050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166519997050 is an abundant number, since it is smaller than the sum of its proper divisors (176441444870).

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

166519997050 is a wasteful number, since it uses less digits than its factorization.

166519997050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528 (or 5523 counting only the distinct ones).

The product of its (nonzero) digits is 4592700, while the sum is 58.

The spelling of 166519997050 in words is "one hundred sixty-six billion, five hundred nineteen million, nine hundred ninety-seven thousand, fifty".