85015338240 has 144 divisors (see below), whose sum is σ = 310306082688. Its totient is φ = 19432071168.

The previous prime is 85015338211. The next prime is 85015338251. The reversal of 85015338240 is 4283351058.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554507 + ... + 1608266.

It is an arithmetic number, because the mean of its divisors is an integer number (2154903352).

Almost surely, 2^85015338240 is an apocalyptic number.

85015338240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85015338240 is an abundant number, since it is smaller than the sum of its proper divisors (225290744448).

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

85015338240 is a wasteful number, since it uses less digits than its factorization.

85015338240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162804 (or 3162790 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 85015338240 its reverse (4283351058), we get a palindrome (89298689298).

The spelling of 85015338240 in words is "eighty-five billion, fifteen million, three hundred thirty-eight thousand, two hundred forty".