145216331664 has 40 divisors (see below), whose sum is σ = 379357282080. Its totient is φ = 47861561088.

The previous prime is 145216331639. The next prime is 145216331681. The reversal of 145216331664 is 466133612541.

It is a happy number.

145216331664 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 7 ways as a sum of consecutive naturals, for example, 16992022 + ... + 17000565.

It is an arithmetic number, because the mean of its divisors is an integer number (9483932052).

Almost surely, 2^145216331664 is an apocalyptic number.

It is an amenable number.

145216331664 is an abundant number, since it is smaller than the sum of its proper divisors (234140950416).

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

145216331664 is a wasteful number, since it uses less digits than its factorization.

145216331664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33992687 (or 33992681 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The spelling of 145216331664 in words is "one hundred forty-five billion, two hundred sixteen million, three hundred thirty-one thousand, six hundred sixty-four".