5515666140 has 48 divisors (see below), whose sum is σ = 15447358080. Its totient is φ = 1470511680.

The previous prime is 5515666001. The next prime is 5515666151. The reversal of 5515666140 is 416665155.

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, 375535 + ... + 389945.

It is an arithmetic number, because the mean of its divisors is an integer number (321819960).

Almost surely, 2^5515666140 is an apocalyptic number.

It is an amenable number.

5515666140 is an abundant number, since it is smaller than the sum of its proper divisors (9931691940).

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

5515666140 is a wasteful number, since it uses less digits than its factorization.

5515666140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20802 (or 20800 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 5515666140 is about 74267.5308597236. The cubic root of 5515666140 is about 1766.8485465213.

The spelling of 5515666140 in words is "five billion, five hundred fifteen million, six hundred sixty-six thousand, one hundred forty".