561670698960 has 400 divisors, whose sum is σ = 2360593483776. Its totient is φ = 120829833216.

The previous prime is 561670698959. The next prime is 561670698961. The reversal of 561670698960 is 69896076165.

561670698960 is a `hidden beast` number, since 5 + 616 + 7 + 0 + 6 + 9 + 8 + 9 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (561670698959) and next prime (561670698961).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561670698961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 406929 + ... + 1135311.

Almost surely, 2^561670698960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561670698960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1180296741888).

561670698960 is an abundant number, since it is smaller than the sum of its proper divisors (1798922784816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561670698960 is a wasteful number, since it uses less digits than its factorization.

561670698960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728432 (or 728417 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 561670698960 in words is "five hundred sixty-one billion, six hundred seventy million, six hundred ninety-eight thousand, nine hundred sixty".