15501506006 has 24 divisors (see below), whose sum is σ = 27779649744. Its totient is φ = 6354651600.

The previous prime is 15501505991. The next prime is 15501506047. The reversal of 15501506006 is 60060510551.

It is a self number, because there is not a number n which added to its sum of digits gives 15501506006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1039145 + ... + 1053956.

It is an arithmetic number, because the mean of its divisors is an integer number (1157485406).

Almost surely, 2^15501506006 is an apocalyptic number.

15501506006 is a deficient number, since it is larger than the sum of its proper divisors (12278143738).

15501506006 is a wasteful number, since it uses less digits than its factorization.

15501506006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093156 (or 2093133 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 15501506006 in words is "fifteen billion, five hundred one million, five hundred six thousand, six".