3161765642 has 32 divisors (see below), whose sum is σ = 5710694400. Its totient is φ = 1282542768.

The previous prime is 3161765617. The next prime is 3161765647. The reversal of 3161765642 is 2465671613.

It is a self number, because there is not a number n which added to its sum of digits gives 3161765642.

It is not an unprimeable number, because it can be changed into a prime (3161765647) 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 15 ways as a sum of consecutive naturals, for example, 320459 + ... + 330177.

It is an arithmetic number, because the mean of its divisors is an integer number (178459200).

Almost surely, 2^3161765642 is an apocalyptic number.

3161765642 is a deficient number, since it is larger than the sum of its proper divisors (2548928758).

3161765642 is a wasteful number, since it uses less digits than its factorization.

3161765642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970.

The product of its digits is 181440, while the sum is 41.

The square root of 3161765642 is about 56229.5797779069. The cubic root of 3161765642 is about 1467.7200440857.

The spelling of 3161765642 in words is "three billion, one hundred sixty-one million, seven hundred sixty-five thousand, six hundred forty-two".