2157814636055 has 8 divisors (see below), whose sum is σ = 2788560452832. Its totient is φ = 1593463115808.

The previous prime is 2157814636007. The next prime is 2157814636057. The reversal of 2157814636055 is 5506364187512.

It is a happy number.

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 2157814636055 - 2²⁸ = 2157546200599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2157814635988 and 2157814636006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157814636057) 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, 16598574059 + ... + 16598574188.

It is an arithmetic number, because the mean of its divisors is an integer number (348570056604).

Almost surely, 2^{2157814636055} is an apocalyptic number.

2157814636055 is a deficient number, since it is larger than the sum of its proper divisors (630745816777).

2157814636055 is a wasteful number, since it uses less digits than its factorization.

2157814636055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33197148265.

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 2157814636055 in words is "two trillion, one hundred fifty-seven billion, eight hundred fourteen million, six hundred thirty-six thousand, fifty-five".