15500606066 has 8 divisors (see below), whose sum is σ = 25364628144. Its totient is φ = 7045730020.

The previous prime is 15500606059. The next prime is 15500606089. The reversal of 15500606066 is 66060600551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352286480 + ... + 352286523.

It is an arithmetic number, because the mean of its divisors is an integer number (3170578518).

Almost surely, 2^15500606066 is an apocalyptic number.

15500606066 is a deficient number, since it is larger than the sum of its proper divisors (9864022078).

15500606066 is a wasteful number, since it uses less digits than its factorization.

15500606066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704573016.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 15500606066 in words is "fifteen billion, five hundred million, six hundred six thousand, sixty-six".