85150556436 has 96 divisors (see below), whose sum is σ = 226533444480. Its totient is φ = 24656486400.

The previous prime is 85150556431. The next prime is 85150556459. The reversal of 85150556436 is 63465505158.

It is a happy number.

It is a super-2 number, since 2×85150556436² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85150556431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256656 + ... + 485976.

It is an arithmetic number, because the mean of its divisors is an integer number (2359723380).

Almost surely, 2^85150556436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85150556436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113266722240).

85150556436 is an abundant number, since it is smaller than the sum of its proper divisors (141382888044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85150556436 is a wasteful number, since it uses less digits than its factorization.

85150556436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229465 (or 229463 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 85150556436 in words is "eighty-five billion, one hundred fifty million, five hundred fifty-six thousand, four hundred thirty-six".