76555066 has 16 divisors (see below), whose sum is σ = 138144960. Its totient is φ = 31082400.

The previous prime is 76555049. The next prime is 76555067. The reversal of 76555066 is 66055567.

It is not an unprimeable number, because it can be changed into a prime (76555067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143635 + ... + 144166.

It is an arithmetic number, because the mean of its divisors is an integer number (8634060).

Almost surely, 2^76555066 is an apocalyptic number.

76555066 is a deficient number, since it is larger than the sum of its proper divisors (61589894).

76555066 is a wasteful number, since it uses less digits than its factorization.

76555066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287829.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 76555066 is about 8749.5751896878. The cubic root of 76555066 is about 424.6110693302.

It can be divided in two parts, 7655 and 5066, that added together give a palindrome (12721).

The spelling of 76555066 in words is "seventy-six million, five hundred fifty-five thousand, sixty-six".