166153219824 has 160 divisors (see below), whose sum is σ = 445185506304. Its totient is φ = 53364326400.

The previous prime is 166153219807. The next prime is 166153219853. The reversal of 166153219824 is 428912351661.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70672249 + ... + 70674599.

Almost surely, 2^166153219824 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 166153219824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222592753152).

166153219824 is an abundant number, since it is smaller than the sum of its proper divisors (279032286480).

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

166153219824 is a wasteful number, since it uses less digits than its factorization.

166153219824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855 (or 2849 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The spelling of 166153219824 in words is "one hundred sixty-six billion, one hundred fifty-three million, two hundred nineteen thousand, eight hundred twenty-four".