545400021342 has 64 divisors (see below), whose sum is σ = 1207944057600. Its totient is φ = 162776359680.

The previous prime is 545400021259. The next prime is 545400021359. The reversal of 545400021342 is 243120004545.

It is a super-2 number, since 2×545400021342² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42573034 + ... + 42585842.

It is an arithmetic number, because the mean of its divisors is an integer number (18874125900).

Almost surely, 2^545400021342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545400021342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603972028800).

545400021342 is an abundant number, since it is smaller than the sum of its proper divisors (662544036258).

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

545400021342 is a wasteful number, since it uses less digits than its factorization.

545400021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22521.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 545400021342 its reverse (243120004545), we get a palindrome (788520025887).

The spelling of 545400021342 in words is "five hundred forty-five billion, four hundred million, twenty-one thousand, three hundred forty-two".