73400706560 has 160 divisors (see below), whose sum is σ = 182797987680. Its totient is φ = 28242542592.

The previous prime is 73400706559. The next prime is 73400706623. The reversal of 73400706560 is 6560700437.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8425727 + ... + 8434433.

It is an arithmetic number, because the mean of its divisors is an integer number (1142487423).

Almost surely, 2^73400706560 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 73400706560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91398993840).

73400706560 is an abundant number, since it is smaller than the sum of its proper divisors (109397281120).

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

73400706560 is an equidigital number, since it uses as much as digits as its factorization.

73400706560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8856 (or 8840 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 73400706560 in words is "seventy-three billion, four hundred million, seven hundred six thousand, five hundred sixty".