71665100034 has 48 divisors (see below), whose sum is σ = 162977391360. Its totient is φ = 20967839200.

The previous prime is 71665100033. The next prime is 71665100083. The reversal of 71665100034 is 43000156617.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 71665099968 and 71665100004.

It is not an unprimeable number, because it can be changed into a prime (71665100033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1680882 + ... + 1722989.

It is an arithmetic number, because the mean of its divisors is an integer number (3395362320).

Almost surely, 2^71665100034 is an apocalyptic number.

71665100034 is an abundant number, since it is smaller than the sum of its proper divisors (91312291326).

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

71665100034 is a wasteful number, since it uses less digits than its factorization.

71665100034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403927 (or 3403916 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 71665100034 in words is "seventy-one billion, six hundred sixty-five million, one hundred thousand, thirty-four".