2156460123605 has 16 divisors (see below), whose sum is σ = 2633980902528. Its totient is φ = 1694430792000.

The previous prime is 2156460123589. The next prime is 2156460123611. The reversal of 2156460123605 is 5063210646512.

It is a happy number.

It is not a de Polignac number, because 2156460123605 - 2⁴ = 2156460123589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4905281 + ... + 5326790.

It is an arithmetic number, because the mean of its divisors is an integer number (164623806408).

Almost surely, 2^{2156460123605} is an apocalyptic number.

It is an amenable number.

2156460123605 is a deficient number, since it is larger than the sum of its proper divisors (477520778923).

2156460123605 is a wasteful number, since it uses less digits than its factorization.

2156460123605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232828.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 2156460123605 in words is "two trillion, one hundred fifty-six billion, four hundred sixty million, one hundred twenty-three thousand, six hundred five".