101256166 has 32 divisors (see below), whose sum is σ = 174763008. Its totient is φ = 43549440.

The previous prime is 101256163. The next prime is 101256179. The reversal of 101256166 is 661652101.

It is a super-2 number, since 2×101256166² = 20505622306039112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101256163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48051 + ... + 50113.

It is an arithmetic number, because the mean of its divisors is an integer number (5461344).

Almost surely, 2^101256166 is an apocalyptic number.

101256166 is a deficient number, since it is larger than the sum of its proper divisors (73506842).

101256166 is a wasteful number, since it uses less digits than its factorization.

101256166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 101256166 is about 10062.6122850878. The cubic root of 101256166 is about 466.0943370322.

The spelling of 101256166 in words is "one hundred one million, two hundred fifty-six thousand, one hundred sixty-six".