805662159497 has 12 divisors (see below), whose sum is σ = 873840752640. Its totient is φ = 742462866288.

The previous prime is 805662159451. The next prime is 805662159509. The reversal of 805662159497 is 794951266508.

It is not a de Polignac number, because 805662159497 - 2⁶ = 805662159433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805662159097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3824297 + ... + 4029462.

It is an arithmetic number, because the mean of its divisors is an integer number (72820062720).

Almost surely, 2^805662159497 is an apocalyptic number.

It is an amenable number.

805662159497 is a deficient number, since it is larger than the sum of its proper divisors (68178593143).

805662159497 is a wasteful number, since it uses less digits than its factorization.

805662159497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7854392 (or 7854379 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 62.

It can be divided in two parts, 8056621 and 59497, that added together give a palindrome (8116118).

The spelling of 805662159497 in words is "eight hundred five billion, six hundred sixty-two million, one hundred fifty-nine thousand, four hundred ninety-seven".