85151320044 has 48 divisors (see below), whose sum is σ = 227093395200. Its totient is φ = 24326462016.

The previous prime is 85151320021. The next prime is 85151320049. The reversal of 85151320044 is 44002315158.

It is a junction number, because it is equal to n+sod(n) for n = 85151319987 and 85151320014.

It is not an unprimeable number, because it can be changed into a prime (85151320049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872542 + ... + 965210.

It is an arithmetic number, because the mean of its divisors is an integer number (4731112400).

Almost surely, 2^85151320044 is an apocalyptic number.

85151320044 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

85151320044 is an abundant number, since it is smaller than the sum of its proper divisors (141942075156).

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

85151320044 is a wasteful number, since it uses less digits than its factorization.

85151320044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103622 (or 103620 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 85151320044 in words is "eighty-five billion, one hundred fifty-one million, three hundred twenty thousand, forty-four".