561329146984 has 16 divisors (see below), whose sum is σ = 1052531381700. Its totient is φ = 280654111872.

The previous prime is 561329146957. The next prime is 561329147003. The reversal of 561329146984 is 489641923165.

It can be written as a sum of positive squares in 2 ways, for example, as 552164914084 + 9164232900 = 743078^2 + 95730^2 .

It is a super-2 number, since 2×561329146984² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077277 + ... + 1511020.

Almost surely, 2^561329146984 is an apocalyptic number.

It is an amenable number.

561329146984 is a deficient number, since it is larger than the sum of its proper divisors (491202234716).

561329146984 is a wasteful number, since it uses less digits than its factorization.

561329146984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615412 (or 2615408 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 58.

The spelling of 561329146984 in words is "five hundred sixty-one billion, three hundred twenty-nine million, one hundred forty-six thousand, nine hundred eighty-four".