2118012653896 has 8 divisors (see below), whose sum is σ = 3971273726070. Its totient is φ = 1059006326944.

The previous prime is 2118012653839. The next prime is 2118012653909. The reversal of 2118012653896 is 6983562108112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2081296728900 + 36715924996 = 1442670^2 + 191614^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132375790861 + ... + 132375790876.

Almost surely, 2^{2118012653896} is an apocalyptic number.

It is an amenable number.

2118012653896 is a deficient number, since it is larger than the sum of its proper divisors (1853261072174).

2118012653896 is a wasteful number, since it uses less digits than its factorization.

2118012653896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264751581743 (or 264751581739 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 2118012653896 in words is "two trillion, one hundred eighteen billion, twelve million, six hundred fifty-three thousand, eight hundred ninety-six".