73363187664 has 240 divisors, whose sum is σ = 225990535680. Its totient is φ = 22077619200.

The previous prime is 73363187633. The next prime is 73363187683. The reversal of 73363187664 is 46678136337.

It is a self number, because there is not a number n which added to its sum of digits gives 73363187664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37601889 + ... + 37603839.

It is an arithmetic number, because the mean of its divisors is an integer number (941627232).

Almost surely, 2^73363187664 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 73363187664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112995267840).

73363187664 is an abundant number, since it is smaller than the sum of its proper divisors (152627348016).

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

73363187664 is a wasteful number, since it uses less digits than its factorization.

73363187664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2401 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The spelling of 73363187664 in words is "seventy-three billion, three hundred sixty-three million, one hundred eighty-seven thousand, six hundred sixty-four".