83180827718155 has 4 divisors (see below), whose sum is σ = 99816993261792. Its totient is φ = 66544662174520.

The previous prime is 83180827718129. The next prime is 83180827718189. The reversal of 83180827718155 is 55181772808138.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83180827718155 - 2¹⁵ = 83180827685387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8318082771811 + ... + 8318082771820.

It is an arithmetic number, because the mean of its divisors is an integer number (24954248315448).

Almost surely, 2^{83180827718155} is an apocalyptic number.

83180827718155 is a deficient number, since it is larger than the sum of its proper divisors (16636165543637).

83180827718155 is a wasteful number, since it uses less digits than its factorization.

83180827718155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16636165543636.

The product of its (nonzero) digits is 30105600, while the sum is 64.

The spelling of 83180827718155 in words is "eighty-three trillion, one hundred eighty billion, eight hundred twenty-seven million, seven hundred eighteen thousand, one hundred fifty-five".