660117254 has 8 divisors (see below), whose sum is σ = 990539280. Its totient is φ = 329937496.

The previous prime is 660117251. The next prime is 660117257. The reversal of 660117254 is 452711066.

It is an interprime number because it is at equal distance from previous prime (660117251) and next prime (660117257).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 660117254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660117251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53594 + ... + 64749.

It is an arithmetic number, because the mean of its divisors is an integer number (123817410).

Almost surely, 2^660117254 is an apocalyptic number.

660117254 is a deficient number, since it is larger than the sum of its proper divisors (330422026).

660117254 is a wasteful number, since it uses less digits than its factorization.

660117254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121134.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 660117254 is about 25692.7471088632. The cubic root of 660117254 is about 870.7103257731.

The spelling of 660117254 in words is "six hundred sixty million, one hundred seventeen thousand, two hundred fifty-four".