73404066737340 has 120 divisors (see below), whose sum is σ = 231927904620720. Its totient is φ = 19433594587392.

The previous prime is 73404066737333. The next prime is 73404066737341. The reversal of 73404066737340 is 4373766040437.

73404066737340 is a `hidden beast` number, since 7 + 3 + 404 + 0 + 66 + 73 + 73 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73404066737341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 162764577 + ... + 163214936.

It is an arithmetic number, because the mean of its divisors is an integer number (1932732538506).

Almost surely, 2^{73404066737340} is an apocalyptic number.

It is an amenable number.

73404066737340 is an abundant number, since it is smaller than the sum of its proper divisors (158523837883380).

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

73404066737340 is a wasteful number, since it uses less digits than its factorization.

73404066737340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325979673 (or 325979662 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 54.

The spelling of 73404066737340 in words is "seventy-three trillion, four hundred four billion, sixty-six million, seven hundred thirty-seven thousand, three hundred forty".