18156338136034 has 16 divisors (see below), whose sum is σ = 31125217704768. Its totient is φ = 7781271118992.

The previous prime is 18156338136031. The next prime is 18156338136043. The reversal of 18156338136034 is 43063183365181.

It is a happy number.

It is a super-2 number, since 2×18156338136034² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18156338136031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7234437 + ... + 9415399.

It is an arithmetic number, because the mean of its divisors is an integer number (1945326106548).

Almost surely, 2^{18156338136034} is an apocalyptic number.

18156338136034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18156338136034 is a deficient number, since it is larger than the sum of its proper divisors (12968879568734).

18156338136034 is a wasteful number, since it uses less digits than its factorization.

18156338136034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775609.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 18156338136034 in words is "eighteen trillion, one hundred fifty-six billion, three hundred thirty-eight million, one hundred thirty-six thousand, thirty-four".