85655616 has 28 divisors (see below), whose sum is σ = 226630992. Its totient is φ = 28551808.

The previous prime is 85655593. The next prime is 85655621. The reversal of 85655616 is 61655658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222870 + ... + 223253.

It is an arithmetic number, because the mean of its divisors is an integer number (8093964).

Almost surely, 2^85655616 is an apocalyptic number.

It is an amenable number.

85655616 is an abundant number, since it is smaller than the sum of its proper divisors (140975376).

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

85655616 is a wasteful number, since it uses less digits than its factorization.

85655616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446138 (or 446128 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 85655616 is about 9255.0319286321. The cubic root of 85655616 is about 440.8105170618.

Adding to 85655616 its sum of digits (42), we get a palindrome (85655658).

The spelling of 85655616 in words is "eighty-five million, six hundred fifty-five thousand, six hundred sixteen".