545546459551 has 4 divisors (see below), whose sum is σ = 545557550400. Its totient is φ = 545535368704.

The previous prime is 545546459527. The next prime is 545546459561. The reversal of 545546459551 is 155954645545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545546459551 - 2²³ = 545538070943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545546459501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5471311 + ... + 5570128.

It is an arithmetic number, because the mean of its divisors is an integer number (136389387600).

Almost surely, 2^545546459551 is an apocalyptic number.

545546459551 is a deficient number, since it is larger than the sum of its proper divisors (11090849).

545546459551 is a wasteful number, since it uses less digits than its factorization.

545546459551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090848.

The product of its digits is 54000000, while the sum is 58.

The spelling of 545546459551 in words is "five hundred forty-five billion, five hundred forty-six million, four hundred fifty-nine thousand, five hundred fifty-one".