81335151514 has 8 divisors (see below), whose sum is σ = 122048549280. Its totient is φ = 40652301756.

The previous prime is 81335151511. The next prime is 81335151517. The reversal of 81335151514 is 41515153318.

It is an interprime number because it is at equal distance from previous prime (81335151511) and next prime (81335151517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (81335151511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7630344 + ... + 7640995.

It is an arithmetic number, because the mean of its divisors is an integer number (15256068660).

Almost surely, 2^81335151514 is an apocalyptic number.

81335151514 is a deficient number, since it is larger than the sum of its proper divisors (40713397766).

81335151514 is a wasteful number, since it uses less digits than its factorization.

81335151514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274004.

The product of its digits is 36000, while the sum is 37.

The spelling of 81335151514 in words is "eighty-one billion, three hundred thirty-five million, one hundred fifty-one thousand, five hundred fourteen".