2155614425644 has 24 divisors (see below), whose sum is σ = 3834299116928. Its totient is φ = 1060101613440.

The previous prime is 2155614425597. The next prime is 2155614425681. The reversal of 2155614425644 is 4465244165512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7763557 + ... + 8036419.

Almost surely, 2^{2155614425644} is an apocalyptic number.

It is an amenable number.

2155614425644 is a deficient number, since it is larger than the sum of its proper divisors (1678684691284).

2155614425644 is a wasteful number, since it uses less digits than its factorization.

2155614425644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305305 (or 305303 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 49.

The spelling of 2155614425644 in words is "two trillion, one hundred fifty-five billion, six hundred fourteen million, four hundred twenty-five thousand, six hundred forty-four".