1672855220573 has 8 divisors (see below), whose sum is σ = 1789518867192. Its totient is φ = 1558220507136.

The previous prime is 1672855220551. The next prime is 1672855220579. The reversal of 1672855220573 is 3750225582761.

It can be written as a sum of positive squares in 4 ways, for example, as 63070295044 + 1609784925529 = 251138^2 + 1268773^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1672855220573 - 2²⁰ = 1672854171997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672855220579) 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, 507231590 + ... + 507234887.

It is an arithmetic number, because the mean of its divisors is an integer number (223689858399).

Almost surely, 2^{1672855220573} is an apocalyptic number.

It is an amenable number.

1672855220573 is a deficient number, since it is larger than the sum of its proper divisors (116663646619).

1672855220573 is a wasteful number, since it uses less digits than its factorization.

1672855220573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014466591.

The product of its (nonzero) digits is 7056000, while the sum is 53.

The spelling of 1672855220573 in words is "one trillion, six hundred seventy-two billion, eight hundred fifty-five million, two hundred twenty thousand, five hundred seventy-three".