146221535660 has 96 divisors (see below), whose sum is σ = 314424031488. Its totient is φ = 57104974080.

The previous prime is 146221535659. The next prime is 146221535741. The reversal of 146221535660 is 66535122641.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78318047 + ... + 78319913.

It is an arithmetic number, because the mean of its divisors is an integer number (3275250328).

Almost surely, 2^146221535660 is an apocalyptic number.

146221535660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146221535660 is an abundant number, since it is smaller than the sum of its proper divisors (168202495828).

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

146221535660 is a wasteful number, since it uses less digits than its factorization.

146221535660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 146221535660 in words is "one hundred forty-six billion, two hundred twenty-one million, five hundred thirty-five thousand, six hundred sixty".