2100656006672 has 20 divisors (see below), whose sum is σ = 4070048355516. Its totient is φ = 1050320947200.

The previous prime is 2100656006611. The next prime is 2100656006699. The reversal of 2100656006672 is 2766006560012.

It can be written as a sum of positive squares in 2 ways, for example, as 772823842816 + 1327832163856 = 879104^2 + 1152316^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2687672 + ... + 3380072.

Almost surely, 2^{2100656006672} is an apocalyptic number.

It is an amenable number.

2100656006672 is a deficient number, since it is larger than the sum of its proper divisors (1969392348844).

2100656006672 is a wasteful number, since it uses less digits than its factorization.

2100656006672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882026 (or 882020 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 2100656006672 in words is "two trillion, one hundred billion, six hundred fifty-six million, six thousand, six hundred seventy-two".