158817141718851 has 128 divisors (see below), whose sum is σ = 279836729303040. Its totient is φ = 77696844825600.

The previous prime is 158817141718771. The next prime is 158817141718927.

158817141718851 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 158817141718851 - 2¹⁴ = 158817141702467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158817141717851) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1242218736 + ... + 1242346578.

It is an arithmetic number, because the mean of its divisors is an integer number (2186224447680).

Almost surely, 2^{158817141718851} is an apocalyptic number.

158817141718851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

158817141718851 is a deficient number, since it is larger than the sum of its proper divisors (121019587584189).

158817141718851 is a wasteful number, since it uses less digits than its factorization.

158817141718851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132457.

The product of its digits is 20070400, while the sum is 66.

The spelling of 158817141718851 in words is "one hundred fifty-eight trillion, eight hundred seventeen billion, one hundred forty-one million, seven hundred eighteen thousand, eight hundred fifty-one".