166440311564604 has 192 divisors, whose sum is σ = 493542264886272. Its totient is φ = 42396942182400.

The previous prime is 166440311564599. The next prime is 166440311564651. The reversal of 166440311564604 is 406465113044661.

166440311564604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110960134 + ... + 112450130.

It is an arithmetic number, because the mean of its divisors is an integer number (2570532629616).

Almost surely, 2^{166440311564604} is an apocalyptic number.

166440311564604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166440311564604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246771132443136).

166440311564604 is an abundant number, since it is smaller than the sum of its proper divisors (327101953321668).

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

166440311564604 is a wasteful number, since it uses less digits than its factorization.

166440311564604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492356 (or 1492354 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 166440311564604 in words is "one hundred sixty-six trillion, four hundred forty billion, three hundred eleven million, five hundred sixty-four thousand, six hundred four".