65675856 has 160 divisors (see below), whose sum is σ = 194273280. Its totient is φ = 19008000.

The previous prime is 65675821. The next prime is 65675861. The reversal of 65675856 is 65857656.

It is a super-2 number, since 2×65675856² = 8626636122665472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 650206 + ... + 650306.

It is an arithmetic number, because the mean of its divisors is an integer number (1214208).

Almost surely, 2^65675856 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 65675856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97136640).

65675856 is an abundant number, since it is smaller than the sum of its proper divisors (128597424).

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

65675856 is a wasteful number, since it uses less digits than its factorization.

65675856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 179 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 48.

The square root of 65675856 is about 8104.0641655900. The cubic root of 65675856 is about 403.4613282882.

The spelling of 65675856 in words is "sixty-five million, six hundred seventy-five thousand, eight hundred fifty-six".