66677488473 has 8 divisors (see below), whose sum is σ = 88908156736. Its totient is φ = 44449239600.

The previous prime is 66677488463. The next prime is 66677488477. The reversal of 66677488473 is 37488477666.

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

It is not a de Polignac number, because 66677488473 - 2¹³ = 66677480281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66677488477) 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, 539533 + ... + 651498.

It is an arithmetic number, because the mean of its divisors is an integer number (11113519592).

Almost surely, 2^66677488473 is an apocalyptic number.

It is an amenable number.

66677488473 is a deficient number, since it is larger than the sum of its proper divisors (22230668263).

66677488473 is a wasteful number, since it uses less digits than its factorization.

66677488473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209695.

The product of its digits is 227598336, while the sum is 66.

The spelling of 66677488473 in words is "sixty-six billion, six hundred seventy-seven million, four hundred eighty-eight thousand, four hundred seventy-three".