755400020072 has 16 divisors (see below), whose sum is σ = 1425396537060. Its totient is φ = 375294276864.

The previous prime is 755400020047. The next prime is 755400020087. The reversal of 755400020072 is 270020004557.

It can be written as a sum of positive squares in 2 ways, for example, as 696600559876 + 58799460196 = 834626^2 + 242486^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300715313 + ... + 300717824.

Almost surely, 2^755400020072 is an apocalyptic number.

It is an amenable number.

755400020072 is a deficient number, since it is larger than the sum of its proper divisors (669996516988).

755400020072 is a wasteful number, since it uses less digits than its factorization.

755400020072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601433300 (or 601433296 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The spelling of 755400020072 in words is "seven hundred fifty-five billion, four hundred million, twenty thousand, seventy-two".