85516449147 has 12 divisors (see below), whose sum is σ = 123534486504. Its totient is φ = 57006015360.

The previous prime is 85516449127. The next prime is 85516449223. The reversal of 85516449147 is 74194461558.

85516449147 is a `hidden beast` number, since 8 + 5 + 51 + 6 + 449 + 147 = 666.

It is not a de Polignac number, because 85516449147 - 2⁷ = 85516449019 is a prime.

It is a super-2 number, since 2×85516449147² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85516449093 and 85516449102.

It is not an unprimeable number, because it can be changed into a prime (85516449107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301593 + ... + 511850.

It is an arithmetic number, because the mean of its divisors is an integer number (10294540542).

Almost surely, 2^85516449147 is an apocalyptic number.

85516449147 is a deficient number, since it is larger than the sum of its proper divisors (38018037357).

85516449147 is a wasteful number, since it uses less digits than its factorization.

85516449147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825130 (or 825127 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 85516449147 in words is "eighty-five billion, five hundred sixteen million, four hundred forty-nine thousand, one hundred forty-seven".