664461546150 has 24 divisors (see below), whose sum is σ = 1647864634824. Its totient is φ = 177189745600.

The previous prime is 664461546149. The next prime is 664461546173. The reversal of 664461546150 is 51645164466.

It is a self number, because there is not a number n which added to its sum of digits gives 664461546150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2214871671 + ... + 2214871970.

It is an arithmetic number, because the mean of its divisors is an integer number (68661026451).

Almost surely, 2^664461546150 is an apocalyptic number.

664461546150 is an abundant number, since it is smaller than the sum of its proper divisors (983403088674).

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

664461546150 is a wasteful number, since it uses less digits than its factorization.

664461546150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429743656 (or 4429743651 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 664461546150 in words is "six hundred sixty-four billion, four hundred sixty-one million, five hundred forty-six thousand, one hundred fifty".