816361067807 has 4 divisors (see below), whose sum is σ = 822319907856. Its totient is φ = 810402227760.

The previous prime is 816361067803. The next prime is 816361067827. The reversal of 816361067807 is 708760163618.

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 816361067807 - 2² = 816361067803 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 (816361067803) 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, 2979419819 + ... + 2979420092.

It is an arithmetic number, because the mean of its divisors is an integer number (205579976964).

Almost surely, 2^816361067807 is an apocalyptic number.

816361067807 is a deficient number, since it is larger than the sum of its proper divisors (5958840049).

816361067807 is a wasteful number, since it uses less digits than its factorization.

816361067807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958840048.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 816361067807 in words is "eight hundred sixteen billion, three hundred sixty-one million, sixty-seven thousand, eight hundred seven".