545506064691 has 32 divisors (see below), whose sum is σ = 834580581888. Its totient is φ = 310470209280.

The previous prime is 545506064687. The next prime is 545506064707. The reversal of 545506064691 is 196460605545.

It is not a de Polignac number, because 545506064691 - 2² = 545506064687 is a prime.

It is a super-2 number, since 2×545506064691² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545506064681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5404896 + ... + 5504898.

It is an arithmetic number, because the mean of its divisors is an integer number (26080643184).

Almost surely, 2^545506064691 is an apocalyptic number.

545506064691 is a deficient number, since it is larger than the sum of its proper divisors (289074517197).

545506064691 is a wasteful number, since it uses less digits than its factorization.

545506064691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101051.

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 545506064691 in words is "five hundred forty-five billion, five hundred six million, sixty-four thousand, six hundred ninety-one".