2157016327 has 4 divisors (see below), whose sum is σ = 2170249720. Its totient is φ = 2143782936.

The previous prime is 2157016247. The next prime is 2157016331. The reversal of 2157016327 is 7236107512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2157016327 - 2²⁷ = 2022798599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2157016292 and 2157016301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157017327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6616452 + ... + 6616777.

It is an arithmetic number, because the mean of its divisors is an integer number (542562430).

Almost surely, 2^2157016327 is an apocalyptic number.

2157016327 is a deficient number, since it is larger than the sum of its proper divisors (13233393).

2157016327 is a wasteful number, since it uses less digits than its factorization.

2157016327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13233392.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 2157016327 is about 46443.6898512597. The cubic root of 2157016327 is about 1292.0653426601.

The spelling of 2157016327 in words is "two billion, one hundred fifty-seven million, sixteen thousand, three hundred twenty-seven".