755216540028 has 84 divisors (see below), whose sum is σ = 1985876421760. Its totient is φ = 251187552576.

The previous prime is 755216540021. The next prime is 755216540083. The reversal of 755216540028 is 820045612557.

755216540028 is a `hidden beast` number, since 7 + 5 + 5 + 216 + 5 + 400 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755216540021) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1049253 + ... + 1615971.

Almost surely, 2^755216540028 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 755216540028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992938210880).

755216540028 is an abundant number, since it is smaller than the sum of its proper divisors (1230659881732).

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

755216540028 is a wasteful number, since it uses less digits than its factorization.

755216540028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567198 (or 567181 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 755216540028 in words is "seven hundred fifty-five billion, two hundred sixteen million, five hundred forty thousand, twenty-eight".