545402665000 has 40 divisors (see below), whose sum is σ = 1277878455810. Its totient is φ = 218161064000.

The previous prime is 545402664973. The next prime is 545402665009. The reversal of 545402665000 is 566204545.

It can be written as a sum of positive squares in 5 ways, for example, as 24814440676 + 520588224324 = 157526^2 + 721518^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (545402665009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 54535267 + ... + 54545266.

Almost surely, 2^545402665000 is an apocalyptic number.

545402665000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545402665000 is an abundant number, since it is smaller than the sum of its proper divisors (732475790810).

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

545402665000 is a wasteful number, since it uses less digits than its factorization.

545402665000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109080559 (or 109080540 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 545402665000 its reverse (566204545), we get a palindrome (545968869545).

The spelling of 545402665000 in words is "five hundred forty-five billion, four hundred two million, six hundred sixty-five thousand".