126640553264156 has 12 divisors (see below), whose sum is σ = 227610724110168. Its totient is φ = 61608917804112.

The previous prime is 126640553264059. The next prime is 126640553264167. The reversal of 126640553264156 is 651462355046621.

It is a congruent number.

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, 427839706826 + ... + 427839707121.

It is an arithmetic number, because the mean of its divisors is an integer number (18967560342514).

Almost surely, 2^{126640553264156} is an apocalyptic number.

It is an amenable number.

126640553264156 is a deficient number, since it is larger than the sum of its proper divisors (100970170846012).

126640553264156 is a wasteful number, since it uses less digits than its factorization.

126640553264156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855679413988 (or 855679413986 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 56.

The spelling of 126640553264156 in words is "one hundred twenty-six trillion, six hundred forty billion, five hundred fifty-three million, two hundred sixty-four thousand, one hundred fifty-six".