16124454261 has 6 divisors (see below), whose sum is σ = 23290878390. Its totient is φ = 10749636168.

The previous prime is 16124454259. The next prime is 16124454271. The reversal of 16124454261 is 16245442161.

16124454261 is a `hidden beast` number, since 1 + 6 + 12 + 44 + 542 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15362363025 + 762091236 = 123945^2 + 27606^2 .

It is not a de Polignac number, because 16124454261 - 2¹ = 16124454259 is a prime.

It is a super-2 number, since 2×16124454261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16124454271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 895803006 + ... + 895803023.

It is an arithmetic number, because the mean of its divisors is an integer number (3881813065).

Almost surely, 2^16124454261 is an apocalyptic number.

It is an amenable number.

16124454261 is a deficient number, since it is larger than the sum of its proper divisors (7166424129).

16124454261 is a wasteful number, since it uses less digits than its factorization.

16124454261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791606035 (or 1791606032 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The spelling of 16124454261 in words is "sixteen billion, one hundred twenty-four million, four hundred fifty-four thousand, two hundred sixty-one".