1808151334166 has 16 divisors (see below), whose sum is σ = 2754957913344. Its totient is φ = 889937149224.

The previous prime is 1808151334147. The next prime is 1808151334193. The reversal of 1808151334166 is 6614331518081.

It is a happy number.

It is a super-2 number, since 2×1808151334166² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1808151334166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26245340 + ... + 26314143.

It is an arithmetic number, because the mean of its divisors is an integer number (172184869584).

Almost surely, 2^{1808151334166} is an apocalyptic number.

1808151334166 is a deficient number, since it is larger than the sum of its proper divisors (946806579178).

1808151334166 is a wasteful number, since it uses less digits than its factorization.

1808151334166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52559755.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 1808151334166 in words is "one trillion, eight hundred eight billion, one hundred fifty-one million, three hundred thirty-four thousand, one hundred sixty-six".