85816006497 has 32 divisors (see below), whose sum is σ = 136999900800. Its totient is φ = 52776881856.

The previous prime is 85816006459. The next prime is 85816006541. The reversal of 85816006497 is 79460061858.

It is not a de Polignac number, because 85816006497 - 2⁷ = 85816006369 is a prime.

It is a super-2 number, since 2×85816006497² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85816006417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492763 + ... + 643775.

It is an arithmetic number, because the mean of its divisors is an integer number (4281246900).

Almost surely, 2^85816006497 is an apocalyptic number.

It is an amenable number.

85816006497 is a deficient number, since it is larger than the sum of its proper divisors (51183894303).

85816006497 is a wasteful number, since it uses less digits than its factorization.

85816006497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152654 (or 152648 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 85816006497 in words is "eighty-five billion, eight hundred sixteen million, six thousand, four hundred ninety-seven".