216157052005 has 8 divisors (see below), whose sum is σ = 259451338752. Its totient is φ = 172883724048.

The previous prime is 216157051987. The next prime is 216157052017. The reversal of 216157052005 is 500250751612.

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 216157052005 - 2²³ = 216148663397 is a prime.

It is a super-2 number, since 2×216157052005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5216997 + ... + 5258266.

It is an arithmetic number, because the mean of its divisors is an integer number (32431417344).

Almost surely, 2^216157052005 is an apocalyptic number.

It is an amenable number.

216157052005 is a deficient number, since it is larger than the sum of its proper divisors (43294286747).

216157052005 is a wasteful number, since it uses less digits than its factorization.

216157052005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479395.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 216157052005 in words is "two hundred sixteen billion, one hundred fifty-seven million, fifty-two thousand, five".