75665016 has 120 divisors (see below), whose sum is σ = 246636720. Its totient is φ = 21609504.

The previous prime is 75665003. The next prime is 75665027. The reversal of 75665016 is 61056657.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 29 ways as a sum of consecutive naturals, for example, 30561 + ... + 32943.

It is an arithmetic number, because the mean of its divisors is an integer number (2055306).

Almost surely, 2^75665016 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 75665016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123318360).

75665016 is an abundant number, since it is smaller than the sum of its proper divisors (170971704).

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

75665016 is a wasteful number, since it uses less digits than its factorization.

75665016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 75665016 is about 8698.5640194230. The cubic root of 75665016 is about 422.9591027308.

The spelling of 75665016 in words is "seventy-five million, six hundred sixty-five thousand, sixteen".