94157231220 has 576 divisors, whose sum is σ = 339074346240. Its totient is φ = 21605695488.

The previous prime is 94157231213. The next prime is 94157231257. The reversal of 94157231220 is 2213275149.

94157231220 is a `hidden beast` number, since 9 + 415 + 7 + 231 + 2 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 212544319 + ... + 212544761.

It is an arithmetic number, because the mean of its divisors is an integer number (588670740).

Almost surely, 2^94157231220 is an apocalyptic number.

94157231220 is a gapful number since it is divisible by the number (90) 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 94157231220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169537173120).

94157231220 is an abundant number, since it is smaller than the sum of its proper divisors (244917115020).

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

94157231220 is a wasteful number, since it uses less digits than its factorization.

94157231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 94157231220 in words is "ninety-four billion, one hundred fifty-seven million, two hundred thirty-one thousand, two hundred twenty".