20150216117 has 8 divisors (see below), whose sum is σ = 20264213376. Its totient is φ = 20036337552.

The previous prime is 20150216083. The next prime is 20150216173. The reversal of 20150216117 is 71161205102.

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

It is a cyclic number.

It is not a de Polignac number, because 20150216117 - 2¹⁸ = 20149953973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20150216017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322568 + ... + 379934.

It is an arithmetic number, because the mean of its divisors is an integer number (2533026672).

Almost surely, 2^20150216117 is an apocalyptic number.

It is an amenable number.

20150216117 is a deficient number, since it is larger than the sum of its proper divisors (113997259).

20150216117 is a wasteful number, since it uses less digits than its factorization.

20150216117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59347.

The product of its (nonzero) digits is 840, while the sum is 26.

The spelling of 20150216117 in words is "twenty billion, one hundred fifty million, two hundred sixteen thousand, one hundred seventeen".