15530230042 has 16 divisors (see below), whose sum is σ = 23697349920. Its totient is φ = 7631193168.

The previous prime is 15530230019. The next prime is 15530230057. The reversal of 15530230042 is 24003203551.

It is a junction number, because it is equal to n+sod(n) for n = 15530229989 and 15530230016.

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, 411073 + ... + 447259.

It is an arithmetic number, because the mean of its divisors is an integer number (1481084370).

Almost surely, 2^15530230042 is an apocalyptic number.

15530230042 is a deficient number, since it is larger than the sum of its proper divisors (8167119878).

15530230042 is a wasteful number, since it uses less digits than its factorization.

15530230042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39885.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 15530230042 its reverse (24003203551), we get a palindrome (39533433593).

The spelling of 15530230042 in words is "fifteen billion, five hundred thirty million, two hundred thirty thousand, forty-two".