660122415 has 24 divisors (see below), whose sum is σ = 1204435440. Its totient is φ = 333535104.

The previous prime is 660122399. The next prime is 660122431. The reversal of 660122415 is 514221066.

It is an interprime number because it is at equal distance from previous prime (660122399) and next prime (660122431).

It is not a de Polignac number, because 660122415 - 2⁴ = 660122399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385182 + ... + 386891.

It is an arithmetic number, because the mean of its divisors is an integer number (50184810).

Almost surely, 2^660122415 is an apocalyptic number.

660122415 is a deficient number, since it is larger than the sum of its proper divisors (544313025).

660122415 is a wasteful number, since it uses less digits than its factorization.

660122415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772103 (or 772100 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 660122415 is about 25692.8475455719. The cubic root of 660122415 is about 870.7125949277.

The spelling of 660122415 in words is "six hundred sixty million, one hundred twenty-two thousand, four hundred fifteen".