5515566020 has 48 divisors (see below), whose sum is σ = 12288786048. Its totient is φ = 2072256000.

The previous prime is 5515565983. The next prime is 5515566053. The reversal of 5515566020 is 206655155.

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, 154895 + ... + 187145.

It is an arithmetic number, because the mean of its divisors is an integer number (256016376).

Almost surely, 2^5515566020 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 5515566020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6144393024).

5515566020 is an abundant number, since it is smaller than the sum of its proper divisors (6773220028).

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

5515566020 is a wasteful number, since it uses less digits than its factorization.

5515566020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780 (or 32778 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 5515566020 is about 74266.8568070576. The cubic root of 5515566020 is about 1766.8378558847.

The spelling of 5515566020 in words is "five billion, five hundred fifteen million, five hundred sixty-six thousand, twenty".