146221535616 has 64 divisors (see below), whose sum is σ = 418277964720. Its totient is φ = 44991240192.

The previous prime is 146221535569. The next prime is 146221535639. The reversal of 146221535616 is 616535122641.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14640595 + ... + 14650578.

Almost surely, 2^146221535616 is an apocalyptic number.

146221535616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

146221535616 is an abundant number, since it is smaller than the sum of its proper divisors (272056429104).

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

146221535616 is a wasteful number, since it uses less digits than its factorization.

146221535616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29291203 (or 29291191 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The spelling of 146221535616 in words is "one hundred forty-six billion, two hundred twenty-one million, five hundred thirty-five thousand, six hundred sixteen".