15501504451042 has 16 divisors (see below), whose sum is σ = 24713691312960. Its totient is φ = 7271528401872.

The previous prime is 15501504450959. The next prime is 15501504451057. The reversal of 15501504451042 is 24015440510551.

It is a junction number, because it is equal to n+sod(n) for n = 15501504450992 and 15501504451010.

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, 1980259813 + ... + 1980267640.

It is an arithmetic number, because the mean of its divisors is an integer number (1544605707060).

Almost surely, 2^{15501504451042} is an apocalyptic number.

15501504451042 is a deficient number, since it is larger than the sum of its proper divisors (9212186861918).

15501504451042 is a wasteful number, since it uses less digits than its factorization.

15501504451042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960527577.

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 15501504451042 its reverse (24015440510551), we get a palindrome (39516944961593).

The spelling of 15501504451042 in words is "fifteen trillion, five hundred one billion, five hundred four million, four hundred fifty-one thousand, forty-two".