85805322612550 has 24 divisors (see below), whose sum is σ = 159966486473976. Its totient is φ = 34242863149440.

The previous prime is 85805322612523. The next prime is 85805322612577. The reversal of 85805322612550 is 5521622350858.

It is an interprime number because it is at equal distance from previous prime (85805322612523) and next prime (85805322612577).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1981625524 + ... + 1981668823.

It is an arithmetic number, because the mean of its divisors is an integer number (6665270269749).

Almost surely, 2^{85805322612550} is an apocalyptic number.

85805322612550 is a deficient number, since it is larger than the sum of its proper divisors (74161163861426).

85805322612550 is a wasteful number, since it uses less digits than its factorization.

85805322612550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963294792 (or 3963294787 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 52.

The spelling of 85805322612550 in words is "eighty-five trillion, eight hundred five billion, three hundred twenty-two million, six hundred twelve thousand, five hundred fifty".