66226671526 has 4 divisors (see below), whose sum is σ = 99340007292. Its totient is φ = 33113335762.

The previous prime is 66226671509. The next prime is 66226671559. The reversal of 66226671526 is 62517662266.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66226671526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16556667880 + ... + 16556667883.

It is an arithmetic number, because the mean of its divisors is an integer number (24835001823).

Almost surely, 2^66226671526 is an apocalyptic number.

66226671526 is a deficient number, since it is larger than the sum of its proper divisors (33113335766).

66226671526 is a wasteful number, since it uses less digits than its factorization.

66226671526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33113335765.

The product of its digits is 2177280, while the sum is 49.

The spelling of 66226671526 in words is "sixty-six billion, two hundred twenty-six million, six hundred seventy-one thousand, five hundred twenty-six".