55461663008 has 48 divisors (see below), whose sum is σ = 112165845120. Its totient is φ = 26978880000.

The previous prime is 55461662987. The next prime is 55461663013. The reversal of 55461663008 is 80036616455.

It is a Cunningham number, because it is equal to 235503²-1.

It is a super-2 number, since 2×55461663008² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55461663008.

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, 412133 + ... + 529883.

It is an arithmetic number, because the mean of its divisors is an integer number (2336788440).

Almost surely, 2^55461663008 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 55461663008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56082922560).

55461663008 is an abundant number, since it is smaller than the sum of its proper divisors (56704182112).

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

55461663008 is a wasteful number, since it uses less digits than its factorization.

55461663008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118161 (or 118153 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 55461663008 in words is "fifty-five billion, four hundred sixty-one million, six hundred sixty-three thousand, eight".