3540205144520 has 128 divisors (see below), whose sum is σ = 8773453180800. Its totient is φ = 1274934988800.

The previous prime is 3540205144457. The next prime is 3540205144559. The reversal of 3540205144520 is 254415020453.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108709040 + ... + 108741600.

It is an arithmetic number, because the mean of its divisors is an integer number (68542602975).

Almost surely, 2^{3540205144520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3540205144520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4386726590400).

3540205144520 is an abundant number, since it is smaller than the sum of its proper divisors (5233248036280).

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

3540205144520 is a wasteful number, since it uses less digits than its factorization.

3540205144520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34959 (or 34955 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 3540205144520 in words is "three trillion, five hundred forty billion, two hundred five million, one hundred forty-four thousand, five hundred twenty".