14166537818 has 12 divisors (see below), whose sum is σ = 22573325022. Its totient is φ = 6666605760.

The previous prime is 14166537811. The next prime is 14166537823. The reversal of 14166537818 is 81873566141.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13412650969 + 753886849 = 115813^2 + 27457^2 .

It is a super-2 number, since 2×14166537818² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14166537811) 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, 12254213 + ... + 12255368.

Almost surely, 2^14166537818 is an apocalyptic number.

14166537818 is a deficient number, since it is larger than the sum of its proper divisors (8406787204).

14166537818 is a wasteful number, since it uses less digits than its factorization.

14166537818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24509617 (or 24509600 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The spelling of 14166537818 in words is "fourteen billion, one hundred sixty-six million, five hundred thirty-seven thousand, eight hundred eighteen".