816546162761 has 16 divisors (see below), whose sum is σ = 945442675200. Its totient is φ = 690771257280.

The previous prime is 816546162749. The next prime is 816546162797. The reversal of 816546162761 is 167261645618.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816546162761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816546162661) 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, 2329505 + ... + 2657006.

It is an arithmetic number, because the mean of its divisors is an integer number (59090167200).

Almost surely, 2^816546162761 is an apocalyptic number.

It is an amenable number.

816546162761 is a deficient number, since it is larger than the sum of its proper divisors (128896512439).

816546162761 is a wasteful number, since it uses less digits than its factorization.

816546162761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986824.

The product of its digits is 2903040, while the sum is 53.

The spelling of 816546162761 in words is "eight hundred sixteen billion, five hundred forty-six million, one hundred sixty-two thousand, seven hundred sixty-one".