2945556916667 has 6 divisors (see below), whose sum is σ = 3079192769772. Its totient is φ = 2817489224132.

The previous prime is 2945556916651. The next prime is 2945556916717. The reversal of 2945556916667 is 7666196555492.

It is not a de Polignac number, because 2945556916667 - 2⁴ = 2945556916651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2945556916667.

It is not an unprimeable number, because it can be changed into a prime (2945556916637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2784079733 + ... + 2784080790.

It is an arithmetic number, because the mean of its divisors is an integer number (513198794962).

Almost surely, 2^{2945556916667} is an apocalyptic number.

2945556916667 is a deficient number, since it is larger than the sum of its proper divisors (133635853105).

2945556916667 is an equidigital number, since it uses as much as digits as its factorization.

2945556916667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568160569 (or 5568160546 counting only the distinct ones).

The product of its digits is 734832000, while the sum is 71.

The spelling of 2945556916667 in words is "two trillion, nine hundred forty-five billion, five hundred fifty-six million, nine hundred sixteen thousand, six hundred sixty-seven".