121660480 has 28 divisors (see below), whose sum is σ = 289704780. Its totient is φ = 48664064.

The previous prime is 121660463. The next prime is 121660507. The reversal of 121660480 is 84066121.

It can be written as a sum of positive squares in 2 ways, for example, as 36578304 + 85082176 = 6048^2 + 9224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189775 + ... + 190414.

Almost surely, 2^121660480 is an apocalyptic number.

121660480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121660480 is an abundant number, since it is smaller than the sum of its proper divisors (168044300).

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

121660480 is an equidigital number, since it uses as much as digits as its factorization.

121660480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380206 (or 380196 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 121660480 is about 11029.9809609990. The cubic root of 121660480 is about 495.5070544772.

The spelling of 121660480 in words is "one hundred twenty-one million, six hundred sixty thousand, four hundred eighty".