61031166 has 24 divisors (see below), whose sum is σ = 141991560. Its totient is φ = 17437392.

The previous prime is 61031153. The next prime is 61031183. The reversal of 61031166 is 66113016.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103501 + ... + 104088.

It is an arithmetic number, because the mean of its divisors is an integer number (5916315).

Almost surely, 2^61031166 is an apocalyptic number.

61031166 is an abundant number, since it is smaller than the sum of its proper divisors (80960394).

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

61031166 is a wasteful number, since it uses less digits than its factorization.

61031166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207608 (or 207601 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 61031166 is about 7812.2446198260. The cubic root of 61031166 is about 393.7167478092.

The spelling of 61031166 in words is "sixty-one million, thirty-one thousand, one hundred sixty-six".