121704660 has 192 divisors, whose sum is σ = 472227840. Its totient is φ = 25280640.

The previous prime is 121704637. The next prime is 121704679. The reversal of 121704660 is 66407121.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 40117 + ... + 43043.

It is an arithmetic number, because the mean of its divisors is an integer number (2459520).

Almost surely, 2^121704660 is an apocalyptic number.

121704660 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 121704660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236113920).

121704660 is an abundant number, since it is smaller than the sum of its proper divisors (350523180).

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

121704660 is a wasteful number, since it uses less digits than its factorization.

121704660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963 (or 2955 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 121704660 is about 11031.9835025257. The cubic root of 121704660 is about 495.5670269851.

The spelling of 121704660 in words is "one hundred twenty-one million, seven hundred four thousand, six hundred sixty".