545120340672 has 112 divisors (see below), whose sum is σ = 1483226294400. Its totient is φ = 176619632640.

The previous prime is 545120340637. The next prime is 545120340679. The reversal of 545120340672 is 276043021545.

It is a super-3 number, since 3×545120340672³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545120340672.

It is not an unprimeable number, because it can be changed into a prime (545120340679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737847 + ... + 1278537.

Almost surely, 2^545120340672 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 545120340672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741613147200).

545120340672 is an abundant number, since it is smaller than the sum of its proper divisors (938105953728).

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

545120340672 is a wasteful number, since it uses less digits than its factorization.

545120340672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540854 (or 540844 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 545120340672 in words is "five hundred forty-five billion, one hundred twenty million, three hundred forty thousand, six hundred seventy-two".