146554221264 has 80 divisors (see below), whose sum is σ = 413740614144. Its totient is φ = 44332502400.

The previous prime is 146554221211. The next prime is 146554221283. The reversal of 146554221264 is 462122455641.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58437 + ... + 544539.

Almost surely, 2^146554221264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146554221264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206870307072).

146554221264 is an abundant number, since it is smaller than the sum of its proper divisors (267186392880).

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

146554221264 is a wasteful number, since it uses less digits than its factorization.

146554221264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486696 (or 486690 counting only the distinct ones).

The product of its digits is 460800, while the sum is 42.

The spelling of 146554221264 in words is "one hundred forty-six billion, five hundred fifty-four million, two hundred twenty-one thousand, two hundred sixty-four".