73340640516 has 144 divisors (see below), whose sum is σ = 209555438400. Its totient is φ = 19807307520.

The previous prime is 73340640511. The next prime is 73340640577. The reversal of 73340640516 is 61504604337.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (73340640511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 480415 + ... + 614393.

It is an arithmetic number, because the mean of its divisors is an integer number (1455246100).

Almost surely, 2^73340640516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73340640516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104777719200).

73340640516 is an abundant number, since it is smaller than the sum of its proper divisors (136214797884).

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

73340640516 is a wasteful number, since it uses less digits than its factorization.

73340640516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134050 (or 134037 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 73340640516 in words is "seventy-three billion, three hundred forty million, six hundred forty thousand, five hundred sixteen".