545545050091 has 8 divisors (see below), whose sum is σ = 564430482000. Its totient is φ = 526664520480.

The previous prime is 545545050079. The next prime is 545545050101. The reversal of 545545050091 is 190050545545.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 545545050091 - 2⁵ = 545545050059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545545050991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998440 + ... + 1444981.

It is an arithmetic number, because the mean of its divisors is an integer number (70553810250).

Almost surely, 2^545545050091 is an apocalyptic number.

545545050091 is a deficient number, since it is larger than the sum of its proper divisors (18885431909).

545545050091 is a wasteful number, since it uses less digits than its factorization.

545545050091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451149.

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 545545050091 in words is "five hundred forty-five billion, five hundred forty-five million, fifty thousand, ninety-one".