331166061 has 12 divisors (see below), whose sum is σ = 490018620. Its totient is φ = 215392320.

The previous prime is 331166057. The next prime is 331166071. The reversal of 331166061 is 160661133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84989961 + 246176100 = 9219^2 + 15690^2 .

It is not a de Polignac number, because 331166061 - 2² = 331166057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331166071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448366 + ... + 449103.

It is an arithmetic number, because the mean of its divisors is an integer number (40834885).

Almost surely, 2^331166061 is an apocalyptic number.

It is an amenable number.

331166061 is a deficient number, since it is larger than the sum of its proper divisors (158852559).

331166061 is a wasteful number, since it uses less digits than its factorization.

331166061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897516 (or 897513 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 331166061 is about 18197.9685954230. The cubic root of 331166061 is about 691.8553030627.

The spelling of 331166061 in words is "three hundred thirty-one million, one hundred sixty-six thousand, sixty-one".