5518152640 has 672 divisors, whose sum is σ = 18913595904. Its totient is φ = 1504419840.

The previous prime is 5518152623. The next prime is 5518152697. The reversal of 5518152640 is 462518155.

It is a self number, because there is not a number n which added to its sum of digits gives 5518152640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51571467 + ... + 51571573.

It is an arithmetic number, because the mean of its divisors is an integer number (28145232).

Almost surely, 2^5518152640 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 5518152640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9456797952).

5518152640 is an abundant number, since it is smaller than the sum of its proper divisors (13395443264).

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

5518152640 is a wasteful number, since it uses less digits than its factorization.

5518152640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 5518152640 is about 74284.2691288001. The cubic root of 5518152640 is about 1767.1140091021.

It can be divided in two parts, 551815 and 2640, that added together give a palindrome (554455).

The spelling of 5518152640 in words is "five billion, five hundred eighteen million, one hundred fifty-two thousand, six hundred forty".