253216166 has 16 divisors (see below), whose sum is σ = 443321856. Its totient is φ = 106211976.

The previous prime is 253216147. The next prime is 253216169. The reversal of 253216166 is 661612352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253216169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191756 + ... + 193071.

It is an arithmetic number, because the mean of its divisors is an integer number (27707616).

Almost surely, 2^253216166 is an apocalyptic number.

253216166 is a deficient number, since it is larger than the sum of its proper divisors (190105690).

253216166 is a wasteful number, since it uses less digits than its factorization.

253216166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384883.

The product of its digits is 12960, while the sum is 32.

The square root of 253216166 is about 15912.7673897409. The cubic root of 253216166 is about 632.6504329546.

The spelling of 253216166 in words is "two hundred fifty-three million, two hundred sixteen thousand, one hundred sixty-six".