545551142140 has 48 divisors (see below), whose sum is σ = 1197583994880. Its totient is φ = 208507890240.

The previous prime is 545551142137. The next prime is 545551142153. The reversal of 545551142140 is 41241155545.

It is a self number, because there is not a number n which added to its sum of digits gives 545551142140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5520142 + ... + 5618101.

It is an arithmetic number, because the mean of its divisors is an integer number (24949666560).

Almost surely, 2^545551142140 is an apocalyptic number.

It is an amenable number.

545551142140 is an abundant number, since it is smaller than the sum of its proper divisors (652032852740).

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

545551142140 is a wasteful number, since it uses less digits than its factorization.

545551142140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11138362 (or 11138360 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 545551142140 its reverse (41241155545), we get a palindrome (586792297685).

The spelling of 545551142140 in words is "five hundred forty-five billion, five hundred fifty-one million, one hundred forty-two thousand, one hundred forty".