75756616 has 48 divisors (see below), whose sum is σ = 155312100. Its totient is φ = 34624512.

The previous prime is 75756601. The next prime is 75756617. The reversal of 75756616 is 61665757.

It can be written as a sum of positive squares in 6 ways, for example, as 30140100 + 45616516 = 5490^2 + 6754^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75756617) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 185020 + ... + 185428.

Almost surely, 2^75756616 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 75756616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77656050).

75756616 is an abundant number, since it is smaller than the sum of its proper divisors (79555484).

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

75756616 is a wasteful number, since it uses less digits than its factorization.

75756616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 561 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The square root of 75756616 is about 8703.8276637351. The cubic root of 75756616 is about 423.1297118721.

The spelling of 75756616 in words is "seventy-five million, seven hundred fifty-six thousand, six hundred sixteen".