561200172206 has 4 divisors (see below), whose sum is σ = 841800258312. Its totient is φ = 280600086102.

The previous prime is 561200172199. The next prime is 561200172301. The reversal of 561200172206 is 602271002165.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140300043050 + ... + 140300043053.

It is an arithmetic number, because the mean of its divisors is an integer number (210450064578).

Almost surely, 2^561200172206 is an apocalyptic number.

561200172206 is a deficient number, since it is larger than the sum of its proper divisors (280600086106).

561200172206 is a wasteful number, since it uses less digits than its factorization.

561200172206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280600086105.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 561200172206 in words is "five hundred sixty-one billion, two hundred million, one hundred seventy-two thousand, two hundred six".