3161143699946 has 8 divisors (see below), whose sum is σ = 4745567475264. Its totient is φ = 1579287874860.

The previous prime is 3161143699943. The next prime is 3161143699969. The reversal of 3161143699946 is 6499963411613.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3161143699943) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 641984480 + ... + 641989403.

It is an arithmetic number, because the mean of its divisors is an integer number (593195934408).

Almost surely, 2^{3161143699946} is an apocalyptic number.

3161143699946 is a deficient number, since it is larger than the sum of its proper divisors (1584423775318).

3161143699946 is a wasteful number, since it uses less digits than its factorization.

3161143699946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283975116.

The product of its digits is 22674816, while the sum is 62.

The spelling of 3161143699946 in words is "three trillion, one hundred sixty-one billion, one hundred forty-three million, six hundred ninety-nine thousand, nine hundred forty-six".