27955155155898 has 16 divisors (see below), whose sum is σ = 56486705264640. Its totient is φ = 9222319226496.

The previous prime is 27955155155881. The next prime is 27955155155899. The reversal of 27955155155898 is 89855155155972.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27955155155899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24016455738 + ... + 24016456901.

It is an arithmetic number, because the mean of its divisors is an integer number (3530419079040).

Almost surely, 2^{27955155155898} is an apocalyptic number.

27955155155898 is an abundant number, since it is smaller than the sum of its proper divisors (28531550108742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27955155155898 is a wasteful number, since it uses less digits than its factorization.

27955155155898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48032912741.

The product of its digits is 1134000000, while the sum is 75.

The spelling of 27955155155898 in words is "twenty-seven trillion, nine hundred fifty-five billion, one hundred fifty-five million, one hundred fifty-five thousand, eight hundred ninety-eight".