66512472045 has 8 divisors (see below), whose sum is σ = 106419955296. Its totient is φ = 35473318416.

The previous prime is 66512471983. The next prime is 66512472071. The reversal of 66512472045 is 54027421566.

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

It is not a de Polignac number, because 66512472045 - 2⁸ = 66512471789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66512471988 and 66512472006.

It is a congruent number.

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, 2217082387 + ... + 2217082416.

It is an arithmetic number, because the mean of its divisors is an integer number (13302494412).

Almost surely, 2^66512472045 is an apocalyptic number.

It is an amenable number.

66512472045 is a deficient number, since it is larger than the sum of its proper divisors (39907483251).

66512472045 is a wasteful number, since it uses less digits than its factorization.

66512472045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434164811.

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 66512472045 in words is "sixty-six billion, five hundred twelve million, four hundred seventy-two thousand, forty-five".