81650882301 has 8 divisors (see below), whose sum is σ = 110359183680. Its totient is φ = 53688251232.

The previous prime is 81650882297. The next prime is 81650882323. The reversal of 81650882301 is 10328805618.

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

It is not a de Polignac number, because 81650882301 - 2² = 81650882297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81650882371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186417321 + ... + 186417758.

It is an arithmetic number, because the mean of its divisors is an integer number (13794897960).

Almost surely, 2^81650882301 is an apocalyptic number.

It is an amenable number.

81650882301 is a deficient number, since it is larger than the sum of its proper divisors (28708301379).

81650882301 is a wasteful number, since it uses less digits than its factorization.

81650882301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372835155.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 81650882301 in words is "eighty-one billion, six hundred fifty million, eight hundred eighty-two thousand, three hundred one".