666050155 has 8 divisors (see below), whose sum is σ = 812363184. Its totient is φ = 524104800.

The previous prime is 666050131. The next prime is 666050179. The reversal of 666050155 is 551050666.

It is an interprime number because it is at equal distance from previous prime (666050131) and next prime (666050179).

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

It is a de Polignac number, because none of the positive numbers 2^k-666050155 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 666050155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091581 + ... + 1092190.

It is an arithmetic number, because the mean of its divisors is an integer number (101545398).

Almost surely, 2^666050155 is an apocalyptic number.

666050155 is a deficient number, since it is larger than the sum of its proper divisors (146313029).

666050155 is a wasteful number, since it uses less digits than its factorization.

666050155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183837.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 666050155 is about 25807.9475162207. The cubic root of 666050155 is about 873.3110954104.

The spelling of 666050155 in words is "six hundred sixty-six million, fifty thousand, one hundred fifty-five".