166266480240 has 120 divisors (see below), whose sum is σ = 638146605408. Its totient is φ = 38003765760.

The previous prime is 166266480217. The next prime is 166266480299. The reversal of 166266480240 is 42084662661.

166266480240 is a `hidden beast` number, since 16 + 62 + 66 + 480 + 2 + 40 = 666.

166266480240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16489651 + ... + 16499730.

Almost surely, 2^166266480240 is an apocalyptic number.

166266480240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166266480240 is an abundant number, since it is smaller than the sum of its proper divisors (471880125168).

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

166266480240 is a wasteful number, since it uses less digits than its factorization.

166266480240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32989407 (or 32989398 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 166266480240 in words is "one hundred sixty-six billion, two hundred sixty-six million, four hundred eighty thousand, two hundred forty".