122693643180 has 144 divisors (see below), whose sum is σ = 374626141344. Its totient is φ = 32503173120.

The previous prime is 122693643179. The next prime is 122693643187. The reversal of 122693643180 is 81346396221.

122693643180 is a `hidden beast` number, since 12 + 269 + 3 + 64 + 318 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (122693643187) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17597095 + ... + 17604065.

It is an arithmetic number, because the mean of its divisors is an integer number (2601570426).

Almost surely, 2^122693643180 is an apocalyptic number.

122693643180 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 122693643180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187313070672).

122693643180 is an abundant number, since it is smaller than the sum of its proper divisors (251932498164).

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

122693643180 is a wasteful number, since it uses less digits than its factorization.

122693643180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616 (or 7611 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 122693643180 in words is "one hundred twenty-two billion, six hundred ninety-three million, six hundred forty-three thousand, one hundred eighty".