166879236480 has 512 divisors, whose sum is σ = 598142361600. Its totient is φ = 39223296000.

The previous prime is 166879236463. The next prime is 166879236551. The reversal of 166879236480 is 84632978661.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 165390216 + ... + 165391224.

It is an arithmetic number, because the mean of its divisors is an integer number (1168246800).

Almost surely, 2^166879236480 is an apocalyptic number.

166879236480 is a gapful number since it is divisible by the number (10) 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 166879236480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299071180800).

166879236480 is an abundant number, since it is smaller than the sum of its proper divisors (431263125120).

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

166879236480 is a wasteful number, since it uses less digits than its factorization.

166879236480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 166879236480 in words is "one hundred sixty-six billion, eight hundred seventy-nine million, two hundred thirty-six thousand, four hundred eighty".