56611441446 has 64 divisors (see below), whose sum is σ = 132979318272. Its totient is φ = 15727537152.

The previous prime is 56611441441. The next prime is 56611441451. The reversal of 56611441446 is 64414411665.

It is an interprime number because it is at equal distance from previous prime (56611441441) and next prime (56611441451).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56611441398 and 56611441407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611441441) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2626405 + ... + 2647871.

It is an arithmetic number, because the mean of its divisors is an integer number (2077801848).

Almost surely, 2^56611441446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56611441446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66489659136).

56611441446 is an abundant number, since it is smaller than the sum of its proper divisors (76367876826).

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

56611441446 is a wasteful number, since it uses less digits than its factorization.

56611441446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23213.

The product of its digits is 276480, while the sum is 42.

The spelling of 56611441446 in words is "fifty-six billion, six hundred eleven million, four hundred forty-one thousand, four hundred forty-six".