672505544566 has 8 divisors (see below), whose sum is σ = 1008873196704. Its totient is φ = 336214479000.

The previous prime is 672505544531. The next prime is 672505544567. The reversal of 672505544566 is 665445505276.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672505544567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19124685 + ... + 19159816.

It is an arithmetic number, because the mean of its divisors is an integer number (126109149588).

Almost surely, 2^672505544566 is an apocalyptic number.

672505544566 is a deficient number, since it is larger than the sum of its proper divisors (336367652138).

672505544566 is a wasteful number, since it uses less digits than its factorization.

672505544566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38293286.

The product of its (nonzero) digits is 30240000, while the sum is 55.

The spelling of 672505544566 in words is "six hundred seventy-two billion, five hundred five million, five hundred forty-four thousand, five hundred sixty-six".