216142786703 has 4 divisors (see below), whose sum is σ = 217697770920. Its totient is φ = 214587802488.

The previous prime is 216142786681. The next prime is 216142786721. The reversal of 216142786703 is 307687241612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216142786703 - 2¹² = 216142782607 is a prime.

It is a super-2 number, since 2×216142786703² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216142786723) 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, 777491900 + ... + 777492177.

It is an arithmetic number, because the mean of its divisors is an integer number (54424442730).

Almost surely, 2^216142786703 is an apocalyptic number.

216142786703 is a deficient number, since it is larger than the sum of its proper divisors (1554984217).

216142786703 is a wasteful number, since it uses less digits than its factorization.

216142786703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554984216.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 216142786703 in words is "two hundred sixteen billion, one hundred forty-two million, seven hundred eighty-six thousand, seven hundred three".