66654051043 has 8 divisors (see below), whose sum is σ = 68569437440. Its totient is φ = 64744660800.

The previous prime is 66654051041. The next prime is 66654051047. The reversal of 66654051043 is 34015045666.

66654051043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66654051043 - 2¹ = 66654051041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66654050987 and 66654051005.

It is not an unprimeable number, because it can be changed into a prime (66654051041) 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, 1476483 + ... + 1520956.

It is an arithmetic number, because the mean of its divisors is an integer number (8571179680).

Almost surely, 2^66654051043 is an apocalyptic number.

66654051043 is a deficient number, since it is larger than the sum of its proper divisors (1915386397).

66654051043 is a wasteful number, since it uses less digits than its factorization.

66654051043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998077.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 66654051043 in words is "sixty-six billion, six hundred fifty-four million, fifty-one thousand, forty-three".