81058516150 has 24 divisors (see below), whose sum is σ = 151036687944. Its totient is φ = 32365804800.

The previous prime is 81058516127. The next prime is 81058516151. The reversal of 81058516150 is 5161585018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81058516151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1411611 + ... + 1467910.

It is an arithmetic number, because the mean of its divisors is an integer number (6293195331).

Almost surely, 2^81058516150 is an apocalyptic number.

81058516150 is a deficient number, since it is larger than the sum of its proper divisors (69978171794).

81058516150 is a wasteful number, since it uses less digits than its factorization.

81058516150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880096 (or 2880091 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 40.

The spelling of 81058516150 in words is "eighty-one billion, fifty-eight million, five hundred sixteen thousand, one hundred fifty".