816165758770084 has 12 divisors (see below), whose sum is σ = 1435540281289884. Its totient is φ = 406011392687264.

The previous prime is 816165758770073. The next prime is 816165758770133. The reversal of 816165758770084 is 480077857561618.

It can be written as a sum of positive squares in 2 ways, for example, as 496152013780900 + 320013744989184 = 22274470^2 + 17888928^2 .

It is a super-2 number, since 2×816165758770084² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 816165758769989 and 816165758770016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517871673559 + ... + 517871675134.

It is an arithmetic number, because the mean of its divisors is an integer number (119628356774157).

Almost surely, 2^{816165758770084} is an apocalyptic number.

It is an amenable number.

816165758770084 is a deficient number, since it is larger than the sum of its proper divisors (619374522519800).

816165758770084 is a wasteful number, since it uses less digits than its factorization.

816165758770084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035743348894 (or 1035743348892 counting only the distinct ones).

The product of its (nonzero) digits is 632217600, while the sum is 73.

The spelling of 816165758770084 in words is "eight hundred sixteen trillion, one hundred sixty-five billion, seven hundred fifty-eight million, seven hundred seventy thousand, eighty-four".