2126516065553 has 16 divisors (see below), whose sum is σ = 2442454007040. Its totient is φ = 1831057981200.

The previous prime is 2126516065523. The next prime is 2126516065601. The reversal of 2126516065553 is 3555606156212.

It is a cyclic number.

It is not a de Polignac number, because 2126516065553 - 2⁶ = 2126516065489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2126516065498 and 2126516065507.

It is not an unprimeable number, because it can be changed into a prime (2126516065523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104075 + ... + 2064912.

It is an arithmetic number, because the mean of its divisors is an integer number (152653375440).

Almost surely, 2^{2126516065553} is an apocalyptic number.

It is an amenable number.

2126516065553 is a deficient number, since it is larger than the sum of its proper divisors (315937941487).

2126516065553 is a wasteful number, since it uses less digits than its factorization.

2126516065553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173708.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 2126516065553 in words is "two trillion, one hundred twenty-six billion, five hundred sixteen million, sixty-five thousand, five hundred fifty-three".