2157558015223 has 8 divisors (see below), whose sum is σ = 2325029886368. Its totient is φ = 1990301268384.

The previous prime is 2157558015199. The next prime is 2157558015229. The reversal of 2157558015223 is 3225108557512.

It is a happy number.

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

It is not a de Polignac number, because 2157558015223 - 2²¹ = 2157555918071 is a prime.

It is a super-2 number, since 2×2157558015223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157558015229) 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, 53760240 + ... + 53800357.

It is an arithmetic number, because the mean of its divisors is an integer number (290628735796).

Almost surely, 2^{2157558015223} is an apocalyptic number.

2157558015223 is a deficient number, since it is larger than the sum of its proper divisors (167471871145).

2157558015223 is a wasteful number, since it uses less digits than its factorization.

2157558015223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107562153.

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 2157558015223 in words is "two trillion, one hundred fifty-seven billion, five hundred fifty-eight million, fifteen thousand, two hundred twenty-three".