2125166035444 has 6 divisors (see below), whose sum is σ = 3719040562034. Its totient is φ = 1062583017720.

The previous prime is 2125166035393. The next prime is 2125166035483. The reversal of 2125166035444 is 4445306615212.

It can be written as a sum of positive squares in only one way, i.e., 1337399731600 + 787766303844 = 1156460^2 + 887562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2125166035444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265645754427 + ... + 265645754434.

Almost surely, 2^{2125166035444} is an apocalyptic number.

It is an amenable number.

2125166035444 is a deficient number, since it is larger than the sum of its proper divisors (1593874526590).

2125166035444 is a wasteful number, since it uses less digits than its factorization.

2125166035444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531291508865 (or 531291508863 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 2125166035444 in words is "two trillion, one hundred twenty-five billion, one hundred sixty-six million, thirty-five thousand, four hundred forty-four".