15611460228 has 144 divisors (see below), whose sum is σ = 48647639040. Its totient is φ = 4110642432.

The previous prime is 15611460199. The next prime is 15611460269. The reversal of 15611460228 is 82206411651.

It is a happy number.

15611460228 is a `hidden beast` number, since 1 + 561 + 14 + 60 + 2 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 15611460192 and 15611460201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2214333 + ... + 2221371.

Almost surely, 2^15611460228 is an apocalyptic number.

15611460228 is a gapful number since it is divisible by the number (18) 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 15611460228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24323819520).

15611460228 is an abundant number, since it is smaller than the sum of its proper divisors (33036178812).

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

15611460228 is a wasteful number, since it uses less digits than its factorization.

15611460228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746 (or 7741 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

Adding to 15611460228 its reverse (82206411651), we get a palindrome (97817871879).

The spelling of 15611460228 in words is "fifteen billion, six hundred eleven million, four hundred sixty thousand, two hundred twenty-eight".