59551543440 has 560 divisors, whose sum is σ = 220407559680. Its totient is φ = 14914990080.

The previous prime is 59551543423. The next prime is 59551543453. The reversal of 59551543440 is 4434515595.

It is a happy number.

59551543440 is a `hidden beast` number, since 5 + 9 + 55 + 154 + 3 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 111 ways as a sum of consecutive naturals, for example, 247101720 + ... + 247101960.

It is an arithmetic number, because the mean of its divisors is an integer number (393584928).

Almost surely, 2^59551543440 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 59551543440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110203779840).

59551543440 is an abundant number, since it is smaller than the sum of its proper divisors (160856016240).

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

59551543440 is a wasteful number, since it uses less digits than its factorization.

59551543440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 59551543440 in words is "fifty-nine billion, five hundred fifty-one million, five hundred forty-three thousand, four hundred forty".