15221467340 has 24 divisors (see below), whose sum is σ = 33647454960. Its totient is φ = 5768134848.

The previous prime is 15221467319. The next prime is 15221467483. The reversal of 15221467340 is 4376412251.

It is a self number, because there is not a number n which added to its sum of digits gives 15221467340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20027867 + ... + 20028626.

It is an arithmetic number, because the mean of its divisors is an integer number (1401977290).

Almost surely, 2^15221467340 is an apocalyptic number.

15221467340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15221467340 is an abundant number, since it is smaller than the sum of its proper divisors (18425987620).

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

15221467340 is a wasteful number, since it uses less digits than its factorization.

15221467340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40056521 (or 40056519 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 15221467340 its reverse (4376412251), we get a palindrome (19597879591).

The spelling of 15221467340 in words is "fifteen billion, two hundred twenty-one million, four hundred sixty-seven thousand, three hundred forty".