545871178545 has 256 divisors, whose sum is σ = 1147702542336. Its totient is φ = 214949376000.

The previous prime is 545871178543. The next prime is 545871178549.

545871178545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545871178545 - 2¹ = 545871178543 is a prime.

It is a super-2 number, since 2×545871178545² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545871178543) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 639942339 + ... + 639943191.

It is an arithmetic number, because the mean of its divisors is an integer number (4483213056).

Almost surely, 2^545871178545 is an apocalyptic number.

545871178545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545871178545 is an abundant number, since it is smaller than the sum of its proper divisors (601831363791).

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

545871178545 is a wasteful number, since it uses less digits than its factorization.

545871178545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264.

The product of its digits is 31360000, while the sum is 60.

The spelling of 545871178545 in words is "five hundred forty-five billion, eight hundred seventy-one million, one hundred seventy-eight thousand, five hundred forty-five".