66023161504 has 48 divisors (see below), whose sum is σ = 131379131520. Its totient is φ = 32657690880.

The previous prime is 66023161433. The next prime is 66023161513. The reversal of 66023161504 is 40516132066.

It is a self number, because there is not a number n which added to its sum of digits gives 66023161504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3388462 + ... + 3407890.

It is an arithmetic number, because the mean of its divisors is an integer number (2737065240).

Almost surely, 2^66023161504 is an apocalyptic number.

It is an amenable number.

66023161504 is a deficient number, since it is larger than the sum of its proper divisors (65355970016).

66023161504 is a wasteful number, since it uses less digits than its factorization.

66023161504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20573 (or 20565 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 66023161504 in words is "sixty-six billion, twenty-three million, one hundred sixty-one thousand, five hundred four".