16255121163 has 8 divisors (see below), whose sum is σ = 22259265168. Its totient is φ = 10543862304.

The previous prime is 16255121117. The next prime is 16255121171. The reversal of 16255121163 is 36112155261.

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

It is not a de Polignac number, because 16255121163 - 2¹³ = 16255112971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16255121173) 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, 73221156 + ... + 73221377.

It is an arithmetic number, because the mean of its divisors is an integer number (2782408146).

Almost surely, 2^16255121163 is an apocalyptic number.

16255121163 is a deficient number, since it is larger than the sum of its proper divisors (6004144005).

16255121163 is a wasteful number, since it uses less digits than its factorization.

16255121163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146442573.

The product of its digits is 10800, while the sum is 33.

The spelling of 16255121163 in words is "sixteen billion, two hundred fifty-five million, one hundred twenty-one thousand, one hundred sixty-three".