816337945801 has 16 divisors (see below), whose sum is σ = 944838822400. Its totient is φ = 690808704768.

The previous prime is 816337945799. The next prime is 816337945847. The reversal of 816337945801 is 108549733618.

It is not a de Polignac number, because 816337945801 - 2¹ = 816337945799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816337945301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8406541 + ... + 8503093.

It is an arithmetic number, because the mean of its divisors is an integer number (59052426400).

Almost surely, 2^816337945801 is an apocalyptic number.

It is an amenable number.

816337945801 is a deficient number, since it is larger than the sum of its proper divisors (128500876599).

816337945801 is a wasteful number, since it uses less digits than its factorization.

816337945801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111928.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 816337945801 in words is "eight hundred sixteen billion, three hundred thirty-seven million, nine hundred forty-five thousand, eight hundred one".