561045766135 has 8 divisors (see below), whose sum is σ = 683303500656. Its totient is φ = 442137558720.

The previous prime is 561045766129. The next prime is 561045766207. The reversal of 561045766135 is 531667540165.

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

It is not a de Polignac number, because 561045766135 - 2⁷ = 561045766007 is a prime.

It is a super-2 number, since 2×561045766135² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837381406 + ... + 837382075.

It is an arithmetic number, because the mean of its divisors is an integer number (85412937582).

Almost surely, 2^561045766135 is an apocalyptic number.

561045766135 is a deficient number, since it is larger than the sum of its proper divisors (122257734521).

561045766135 is a wasteful number, since it uses less digits than its factorization.

561045766135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674763553.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 561045766135 in words is "five hundred sixty-one billion, forty-five million, seven hundred sixty-six thousand, one hundred thirty-five".