55436163960 has 256 divisors, whose sum is σ = 180387648000. Its totient is φ = 13582909440.

The previous prime is 55436163949. The next prime is 55436164009. The reversal of 55436163960 is 6936163455.

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 63 ways as a sum of consecutive naturals, for example, 16731264 + ... + 16734576.

It is an arithmetic number, because the mean of its divisors is an integer number (704639250).

Almost surely, 2^55436163960 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 55436163960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90193824000).

55436163960 is an abundant number, since it is smaller than the sum of its proper divisors (124951484040).

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

55436163960 is a wasteful number, since it uses less digits than its factorization.

55436163960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3566 (or 3562 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 55436163960 in words is "fifty-five billion, four hundred thirty-six million, one hundred sixty-three thousand, nine hundred sixty".