2511552115320 has 128 divisors (see below), whose sum is σ = 7632295856640. Its totient is φ = 661082688000.

The previous prime is 2511552115309. The next prime is 2511552115349. The reversal of 2511552115320 is 235112551152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11012445 + ... + 11238195.

It is an arithmetic number, because the mean of its divisors is an integer number (59627311380).

Almost surely, 2^{2511552115320} is an apocalyptic number.

2511552115320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2511552115320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3816147928320).

2511552115320 is an abundant number, since it is smaller than the sum of its proper divisors (5120743741320).

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

2511552115320 is a wasteful number, since it uses less digits than its factorization.

2511552115320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226965 (or 226961 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 33.

Adding to 2511552115320 its reverse (235112551152), we get a palindrome (2746664666472).

The spelling of 2511552115320 in words is "two trillion, five hundred eleven billion, five hundred fifty-two million, one hundred fifteen thousand, three hundred twenty".