3545345554020 has 72 divisors (see below), whose sum is σ = 10957124590776. Its totient is φ = 927587261952.

The previous prime is 3545345553977. The next prime is 3545345554027. The reversal of 3545345554020 is 204555435453.

3545345554020 is a `hidden beast` number, since 3 + 5 + 4 + 5 + 34 + 55 + 540 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 510035932224 + 3035309621796 = 714168^2 + 1742214^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3545345554027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185805217 + ... + 185824296.

It is an arithmetic number, because the mean of its divisors is an integer number (152182285983).

Almost surely, 2^{3545345554020} is an apocalyptic number.

3545345554020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3545345554020 is an abundant number, since it is smaller than the sum of its proper divisors (7411779036756).

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

3545345554020 is a wasteful number, since it uses less digits than its factorization.

3545345554020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371629581 (or 371629576 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 45.

The spelling of 3545345554020 in words is "three trillion, five hundred forty-five billion, three hundred forty-five million, five hundred fifty-four thousand, twenty".