2145256267116 has 12 divisors (see below), whose sum is σ = 5005597956632. Its totient is φ = 715085422368.

The previous prime is 2145256267097. The next prime is 2145256267123. The reversal of 2145256267116 is 6117626525412.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89385677785 + ... + 89385677808.

Almost surely, 2^{2145256267116} is an apocalyptic number.

It is an amenable number.

2145256267116 is an abundant number, since it is smaller than the sum of its proper divisors (2860341689516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145256267116 is a wasteful number, since it uses less digits than its factorization.

2145256267116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178771355600 (or 178771355598 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The spelling of 2145256267116 in words is "two trillion, one hundred forty-five billion, two hundred fifty-six million, two hundred sixty-seven thousand, one hundred sixteen".