2125360643156 has 12 divisors (see below), whose sum is σ = 3719879954868. Its totient is φ = 1062537798912.

The previous prime is 2125360643149. The next prime is 2125360643209. The reversal of 2125360643156 is 6513460635212.

It can be written as a sum of positive squares in 2 ways, for example, as 420508153156 + 1704852490000 = 648466^2 + 1305700^2 .

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, 35597111 + ... + 35656766.

It is an arithmetic number, because the mean of its divisors is an integer number (309989996239).

Almost surely, 2^{2125360643156} is an apocalyptic number.

It is an amenable number.

2125360643156 is a deficient number, since it is larger than the sum of its proper divisors (1594519311712).

2125360643156 is a wasteful number, since it uses less digits than its factorization.

2125360643156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71261338 (or 71261336 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 2125360643156 in words is "two trillion, one hundred twenty-five billion, three hundred sixty million, six hundred forty-three thousand, one hundred fifty-six".