561701062400 has 108 divisors (see below), whose sum is σ = 1393878103800. Its totient is φ = 224101847040.

The previous prime is 561701062393. The next prime is 561701062411. The reversal of 561701062400 is 4260107165.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2376791 + ... + 2602409.

Almost surely, 2^561701062400 is an apocalyptic number.

561701062400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561701062400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696939051900).

561701062400 is an abundant number, since it is smaller than the sum of its proper divisors (832177041400).

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

561701062400 is a wasteful number, since it uses less digits than its factorization.

561701062400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226034 (or 226015 counting only the distinct ones).

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

Adding to 561701062400 its reverse (4260107165), we get a palindrome (565961169565).

The spelling of 561701062400 in words is "five hundred sixty-one billion, seven hundred one million, sixty-two thousand, four hundred".