2156124154613 has 8 divisors (see below), whose sum is σ = 2533068937056. Its totient is φ = 1809334954800.

The previous prime is 2156124154609. The next prime is 2156124154663. The reversal of 2156124154613 is 3164514216512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2156124154613 - 2² = 2156124154609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156124154663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7538895503 + ... + 7538895788.

It is an arithmetic number, because the mean of its divisors is an integer number (316633617132).

Almost surely, 2^{2156124154613} is an apocalyptic number.

It is an amenable number.

2156124154613 is a deficient number, since it is larger than the sum of its proper divisors (376944782443).

2156124154613 is a wasteful number, since it uses less digits than its factorization.

2156124154613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077791315.

The product of its digits is 172800, while the sum is 41.

The spelling of 2156124154613 in words is "two trillion, one hundred fifty-six billion, one hundred twenty-four million, one hundred fifty-four thousand, six hundred thirteen".