3161404552565 has 32 divisors (see below), whose sum is σ = 4338707155200. Its totient is φ = 2166287629824.

The previous prime is 3161404552541. The next prime is 3161404552609. The reversal of 3161404552565 is 5652554041613.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3161404552565 - 2¹⁶ = 3161404487029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 541055534 + ... + 541061376.

It is an arithmetic number, because the mean of its divisors is an integer number (135584598600).

Almost surely, 2^{3161404552565} is an apocalyptic number.

3161404552565 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3161404552565 is a deficient number, since it is larger than the sum of its proper divisors (1177302602635).

3161404552565 is a wasteful number, since it uses less digits than its factorization.

3161404552565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14141.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 3161404552565 in words is "three trillion, one hundred sixty-one billion, four hundred four million, five hundred fifty-two thousand, five hundred sixty-five".