85402486161 has 20 divisors (see below), whose sum is σ = 127687532544. Its totient is φ = 56885463000.

The previous prime is 85402486151. The next prime is 85402486187. The reversal of 85402486161 is 16168420458.

It is a happy number.

85402486161 is a `hidden beast` number, since 8 + 5 + 4 + 0 + 2 + 486 + 161 = 666.

It is not a de Polignac number, because 85402486161 - 2³⁰ = 84328744337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85402486121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 364785 + ... + 551246.

Almost surely, 2^85402486161 is an apocalyptic number.

85402486161 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

85402486161 is a deficient number, since it is larger than the sum of its proper divisors (42285046383).

85402486161 is a wasteful number, since it uses less digits than its factorization.

85402486161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917194 (or 917185 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 85402486161 in words is "eighty-five billion, four hundred two million, four hundred eighty-six thousand, one hundred sixty-one".