81010158324015 has 8 divisors (see below), whose sum is σ = 129616253318448. Its totient is φ = 43205417772800.

The previous prime is 81010158323993. The next prime is 81010158324071. The reversal of 81010158324015 is 51042385101018.

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

It is not a de Polignac number, because 81010158324015 - 2²⁴ = 81010141546799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700338610786 + ... + 2700338610815.

It is an arithmetic number, because the mean of its divisors is an integer number (16202031664806).

Almost surely, 2^{81010158324015} is an apocalyptic number.

81010158324015 is a deficient number, since it is larger than the sum of its proper divisors (48606094994433).

81010158324015 is a wasteful number, since it uses less digits than its factorization.

81010158324015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5400677221609.

The product of its (nonzero) digits is 38400, while the sum is 39.

The spelling of 81010158324015 in words is "eighty-one trillion, ten billion, one hundred fifty-eight million, three hundred twenty-four thousand, fifteen".