81483147660 has 48 divisors (see below), whose sum is σ = 228197291616. Its totient is φ = 21724603392.

The previous prime is 81483147653. The next prime is 81483147721. The reversal of 81483147660 is 6674138418.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184222 + ... + 443738.

It is an arithmetic number, because the mean of its divisors is an integer number (4754110242).

Almost surely, 2^81483147660 is an apocalyptic number.

It is an amenable number.

81483147660 is an abundant number, since it is smaller than the sum of its proper divisors (146714143956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81483147660 is a wasteful number, since it uses less digits than its factorization.

81483147660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264762 (or 264760 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 81483147660 in words is "eighty-one billion, four hundred eighty-three million, one hundred forty-seven thousand, six hundred sixty".