85169235801 has 8 divisors (see below), whose sum is σ = 122294287360. Its totient is φ = 52411837392.

The previous prime is 85169235797. The next prime is 85169235817. The reversal of 85169235801 is 10853296158.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85169235801 - 2² = 85169235797 is a prime.

It is a super-2 number, since 2×85169235801² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85169235871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091913241 + ... + 1091913318.

It is an arithmetic number, because the mean of its divisors is an integer number (15286785920).

Almost surely, 2^85169235801 is an apocalyptic number.

It is an amenable number.

85169235801 is a deficient number, since it is larger than the sum of its proper divisors (37125051559).

85169235801 is a wasteful number, since it uses less digits than its factorization.

85169235801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183826575.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 85169235801 in words is "eighty-five billion, one hundred sixty-nine million, two hundred thirty-five thousand, eight hundred one".