66452045444 has 96 divisors (see below), whose sum is σ = 125877628800. Its totient is φ = 30602880000.

The previous prime is 66452045431. The next prime is 66452045449. The reversal of 66452045444 is 44454025466.

It is a junction number, because it is equal to n+sod(n) for n = 66452045395 and 66452045404.

It is not an unprimeable number, because it can be changed into a prime (66452045449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144147374 + ... + 144147834.

It is an arithmetic number, because the mean of its divisors is an integer number (1311225300).

Almost surely, 2^66452045444 is an apocalyptic number.

It is an amenable number.

66452045444 is a deficient number, since it is larger than the sum of its proper divisors (59425583356).

66452045444 is a wasteful number, since it uses less digits than its factorization.

66452045444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 66452045444 in words is "sixty-six billion, four hundred fifty-two million, forty-five thousand, four hundred forty-four".