215651006104 has 16 divisors (see below), whose sum is σ = 404494827120. Its totient is φ = 107785718880.

The previous prime is 215651006099. The next prime is 215651006159. The reversal of 215651006104 is 401600156512.

215651006104 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4949979 + ... + 4993354.

It is an arithmetic number, because the mean of its divisors is an integer number (25280926695).

Almost surely, 2^215651006104 is an apocalyptic number.

It is an amenable number.

215651006104 is a deficient number, since it is larger than the sum of its proper divisors (188843821016).

215651006104 is a wasteful number, since it uses less digits than its factorization.

215651006104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9946050 (or 9946046 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 215651006104 in words is "two hundred fifteen billion, six hundred fifty-one million, six thousand, one hundred four".