85513063520 has 96 divisors (see below), whose sum is σ = 208665870336. Its totient is φ = 33082099200.

The previous prime is 85513063511. The next prime is 85513063547. The reversal of 85513063520 is 2536031558.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10466477 + ... + 10474643.

It is an arithmetic number, because the mean of its divisors is an integer number (2173602816).

Almost surely, 2^85513063520 is an apocalyptic number.

85513063520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85513063520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104332935168).

85513063520 is an abundant number, since it is smaller than the sum of its proper divisors (123152806816).

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

85513063520 is a wasteful number, since it uses less digits than its factorization.

85513063520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324 (or 10316 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 85513063520 in words is "eighty-five billion, five hundred thirteen million, sixty-three thousand, five hundred twenty".