66632472049 has 8 divisors (see below), whose sum is σ = 78281505792. Its totient is φ = 55915361040.

The previous prime is 66632472031. The next prime is 66632472089. The reversal of 66632472049 is 94027423666.

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

It is not a de Polignac number, because 66632472049 - 2¹³ = 66632463857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66632471993 and 66632472011.

It is not an unprimeable number, because it can be changed into a prime (66632472019) 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, 232980529 + ... + 232980814.

It is an arithmetic number, because the mean of its divisors is an integer number (9785188224).

Almost surely, 2^66632472049 is an apocalyptic number.

It is an amenable number.

66632472049 is a deficient number, since it is larger than the sum of its proper divisors (11649033743).

66632472049 is a wasteful number, since it uses less digits than its factorization.

66632472049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465961367.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 66632472049 in words is "sixty-six billion, six hundred thirty-two million, four hundred seventy-two thousand, forty-nine".