66288755474 has 16 divisors (see below), whose sum is σ = 101889549216. Its totient is φ = 32326068000.

The previous prime is 66288755471. The next prime is 66288755521. The reversal of 66288755474 is 47455788266.

It is not an unprimeable number, because it can be changed into a prime (66288755471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 148949 + ... + 393399.

It is an arithmetic number, because the mean of its divisors is an integer number (6368096826).

Almost surely, 2^66288755474 is an apocalyptic number.

66288755474 is a deficient number, since it is larger than the sum of its proper divisors (35600793742).

66288755474 is a wasteful number, since it uses less digits than its factorization.

66288755474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247801.

The product of its digits is 90316800, while the sum is 62.

The spelling of 66288755474 in words is "sixty-six billion, two hundred eighty-eight million, seven hundred fifty-five thousand, four hundred seventy-four".