15530222204 has 48 divisors (see below), whose sum is σ = 33155781120. Its totient is φ = 6216678720.

The previous prime is 15530222167. The next prime is 15530222243. The reversal of 15530222204 is 40222203551.

It is a super-2 number, since 2×15530222204² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 167807 + ... + 243350.

It is an arithmetic number, because the mean of its divisors is an integer number (690745440).

Almost surely, 2^15530222204 is an apocalyptic number.

15530222204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15530222204 is an abundant number, since it is smaller than the sum of its proper divisors (17625558916).

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

15530222204 is a wasteful number, since it uses less digits than its factorization.

15530222204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411258 (or 411256 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 15530222204 its reverse (40222203551), we get a palindrome (55752425755).

The spelling of 15530222204 in words is "fifteen billion, five hundred thirty million, two hundred twenty-two thousand, two hundred four".