2155616327 has 8 divisors (see below), whose sum is σ = 2250460800. Its totient is φ = 2060865400.

The previous prime is 2155616297. The next prime is 2155616387. The reversal of 2155616327 is 7236165512.

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 a de Polignac number, because none of the positive numbers 2^k-2155616327 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 (2155616387) 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, 25952 + ... + 70602.

It is an arithmetic number, because the mean of its divisors is an integer number (281307600).

Almost surely, 2^2155616327 is an apocalyptic number.

2155616327 is a deficient number, since it is larger than the sum of its proper divisors (94844473).

2155616327 is a wasteful number, since it uses less digits than its factorization.

2155616327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46773.

The product of its digits is 75600, while the sum is 38.

The square root of 2155616327 is about 46428.6153896495. The cubic root of 2155616327 is about 1291.7857461099.

The spelling of 2155616327 in words is "two billion, one hundred fifty-five million, six hundred sixteen thousand, three hundred twenty-seven".