66472560745 has 8 divisors (see below), whose sum is σ = 80663332680. Its totient is φ = 52580542080.

The previous prime is 66472560731. The next prime is 66472560787. The reversal of 66472560745 is 54706527466.

66472560745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 516561984 + 65955998761 = 22728^2 + 256819^2 .

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

It is not a de Polignac number, because 66472560745 - 2⁷ = 66472560617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66472560692 and 66472560701.

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, 74687826 + ... + 74688715.

It is an arithmetic number, because the mean of its divisors is an integer number (10082916585).

Almost surely, 2^66472560745 is an apocalyptic number.

It is an amenable number.

66472560745 is a deficient number, since it is larger than the sum of its proper divisors (14190771935).

66472560745 is a wasteful number, since it uses less digits than its factorization.

66472560745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149376635.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 66472560745 in words is "sixty-six billion, four hundred seventy-two million, five hundred sixty thousand, seven hundred forty-five".