61256166 has 32 divisors (see below), whose sum is σ = 126023040. Its totient is φ = 19838784.

The previous prime is 61256161. The next prime is 61256189. The reversal of 61256166 is 66165216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61256161) 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, 59605 + ... + 60623.

It is an arithmetic number, because the mean of its divisors is an integer number (3938220).

Almost surely, 2^61256166 is an apocalyptic number.

61256166 is an abundant number, since it is smaller than the sum of its proper divisors (64766874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61256166 is a wasteful number, since it uses less digits than its factorization.

61256166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300.

The product of its digits is 12960, while the sum is 33.

The square root of 61256166 is about 7826.6318426255. The cubic root of 61256166 is about 394.1999852246.

The spelling of 61256166 in words is "sixty-one million, two hundred fifty-six thousand, one hundred sixty-six".