15611602468 has 192 divisors, whose sum is σ = 35810611200. Its totient is φ = 5950818720.

The previous prime is 15611602463. The next prime is 15611602471. The reversal of 15611602468 is 86420611651.

It is a self number, because there is not a number n which added to its sum of digits gives 15611602468.

It is not an unprimeable number, because it can be changed into a prime (15611602463) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 151568905 + ... + 151569007.

It is an arithmetic number, because the mean of its divisors is an integer number (186513600).

Almost surely, 2^15611602468 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 15611602468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17905305600).

15611602468 is an abundant number, since it is smaller than the sum of its proper divisors (20199008732).

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

15611602468 is a wasteful number, since it uses less digits than its factorization.

15611602468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 15611602468 in words is "fifteen billion, six hundred eleven million, six hundred two thousand, four hundred sixty-eight".