215117615102 has 8 divisors (see below), whose sum is σ = 347497685976. Its totient is φ = 99285053112.

The previous prime is 215117615093. The next prime is 215117615129. The reversal of 215117615102 is 201516711512.

215117615102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 4136877188 + ... + 4136877239.

It is an arithmetic number, because the mean of its divisors is an integer number (43437210747).

Almost surely, 2^215117615102 is an apocalyptic number.

215117615102 is a deficient number, since it is larger than the sum of its proper divisors (132380070874).

215117615102 is a wasteful number, since it uses less digits than its factorization.

215117615102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8273754442.

The product of its (nonzero) digits is 4200, while the sum is 32.

The spelling of 215117615102 in words is "two hundred fifteen billion, one hundred seventeen million, six hundred fifteen thousand, one hundred two".