561072735206 has 4 divisors (see below), whose sum is σ = 841609102812. Its totient is φ = 280536367602.

The previous prime is 561072735203. The next prime is 561072735247. The reversal of 561072735206 is 602537270165.

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

It is a super-2 number, since 2×561072735206² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561072735203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140268183800 + ... + 140268183803.

It is an arithmetic number, because the mean of its divisors is an integer number (210402275703).

Almost surely, 2^561072735206 is an apocalyptic number.

561072735206 is a deficient number, since it is larger than the sum of its proper divisors (280536367606).

561072735206 is a wasteful number, since it uses less digits than its factorization.

561072735206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280536367605.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 561072735206 in words is "five hundred sixty-one billion, seventy-two million, seven hundred thirty-five thousand, two hundred six".