755640066 has 48 divisors (see below), whose sum is σ = 1615809600. Its totient is φ = 235297440.

The previous prime is 755640059. The next prime is 755640079. The reversal of 755640066 is 660046557.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 164955 + ... + 169473.

It is an arithmetic number, because the mean of its divisors is an integer number (33662700).

Almost surely, 2^755640066 is an apocalyptic number.

755640066 is an abundant number, since it is smaller than the sum of its proper divisors (860169534).

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

755640066 is a wasteful number, since it uses less digits than its factorization.

755640066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615 (or 4584 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 755640066 is about 27488.9080539770. The cubic root of 755640066 is about 910.8320956478.

The spelling of 755640066 in words is "seven hundred fifty-five million, six hundred forty thousand, sixty-six".