331661062 has 4 divisors (see below), whose sum is σ = 497491596. Its totient is φ = 165830530.

The previous prime is 331661059. The next prime is 331661069. The reversal of 331661062 is 260166133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 260166133 = 23 ⋅11311571.

It is a self number, because there is not a number n which added to its sum of digits gives 331661062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331661069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82915264 + ... + 82915267.

It is an arithmetic number, because the mean of its divisors is an integer number (124372899).

Almost surely, 2^331661062 is an apocalyptic number.

331661062 is a deficient number, since it is larger than the sum of its proper divisors (165830534).

331661062 is a wasteful number, since it uses less digits than its factorization.

331661062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165830533.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 331661062 is about 18211.5639635919. The cubic root of 331661062 is about 692.1998417667.

The spelling of 331661062 in words is "three hundred thirty-one million, six hundred sixty-one thousand, sixty-two".