21160015606 has 8 divisors (see below), whose sum is σ = 32415343200. Its totient is φ = 10354901208.

The previous prime is 21160015573. The next prime is 21160015607. The reversal of 21160015606 is 60651006112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21160015607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112553181 + ... + 112553368.

It is an arithmetic number, because the mean of its divisors is an integer number (4051917900).

Almost surely, 2^21160015606 is an apocalyptic number.

21160015606 is a deficient number, since it is larger than the sum of its proper divisors (11255327594).

21160015606 is a wasteful number, since it uses less digits than its factorization.

21160015606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225106598.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 21160015606 in words is "twenty-one billion, one hundred sixty million, fifteen thousand, six hundred six".