2179450294156 has 12 divisors (see below), whose sum is σ = 3870963955768. Its totient is φ = 1073460592512.

The previous prime is 2179450294121. The next prime is 2179450294181. The reversal of 2179450294156 is 6514920549712.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2179450294097 and 2179450294106.

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, 4066138341 + ... + 4066138876.

Almost surely, 2^{2179450294156} is an apocalyptic number.

It is an amenable number.

2179450294156 is a deficient number, since it is larger than the sum of its proper divisors (1691513661612).

2179450294156 is a wasteful number, since it uses less digits than its factorization.

2179450294156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132277288 (or 8132277286 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 2179450294156 in words is "two trillion, one hundred seventy-nine billion, four hundred fifty million, two hundred ninety-four thousand, one hundred fifty-six".