545422321645 has 8 divisors (see below), whose sum is σ = 655009873560. Its totient is φ = 436002465600.

The previous prime is 545422321621. The next prime is 545422321687. The reversal of 545422321645 is 546123224545.

It can be written as a sum of positive squares in 4 ways, for example, as 5980547556 + 539441774089 = 77334^2 + 734467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545422321645 - 2¹³ = 545422313453 is a prime.

It is a super-3 number, since 3×545422321645³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41916810 + ... + 41929819.

It is an arithmetic number, because the mean of its divisors is an integer number (81876234195).

Almost surely, 2^545422321645 is an apocalyptic number.

It is an amenable number.

545422321645 is a deficient number, since it is larger than the sum of its proper divisors (109587551915).

545422321645 is a wasteful number, since it uses less digits than its factorization.

545422321645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83847935.

The product of its digits is 1152000, while the sum is 43.

The spelling of 545422321645 in words is "five hundred forty-five billion, four hundred twenty-two million, three hundred twenty-one thousand, six hundred forty-five".