15640040130 has 192 divisors, whose sum is σ = 44736620544. Its totient is φ = 3475929600.

The previous prime is 15640040033. The next prime is 15640040147. The reversal of 15640040130 is 3104004651.

It is a super-2 number, since 2×15640040130² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15640040130.

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, 7407775 + ... + 7409885.

It is an arithmetic number, because the mean of its divisors is an integer number (233003232).

Almost surely, 2^15640040130 is an apocalyptic number.

15640040130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15640040130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22368310272).

15640040130 is an abundant number, since it is smaller than the sum of its proper divisors (29096580414).

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

15640040130 is a wasteful number, since it uses less digits than its factorization.

15640040130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2302 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 15640040130 its reverse (3104004651), we get a palindrome (18744044781).

The spelling of 15640040130 in words is "fifteen billion, six hundred forty million, forty thousand, one hundred thirty".