27166542827842 has 32 divisors (see below), whose sum is σ = 45563773501440. Its totient is φ = 12043549360080.

The previous prime is 27166542827821. The next prime is 27166542827861. The reversal of 27166542827842 is 24872824566172.

It is a super-2 number, since 2×27166542827842² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82234918 + ... + 82564609.

It is an arithmetic number, because the mean of its divisors is an integer number (1423867921920).

Almost surely, 2^{27166542827842} is an apocalyptic number.

27166542827842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

27166542827842 is a deficient number, since it is larger than the sum of its proper divisors (18397230673598).

27166542827842 is a wasteful number, since it uses less digits than its factorization.

27166542827842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164799726.

The product of its digits is 144506880, while the sum is 64.

The spelling of 27166542827842 in words is "twenty-seven trillion, one hundred sixty-six billion, five hundred forty-two million, eight hundred twenty-seven thousand, eight hundred forty-two".