55645340058 has 96 divisors (see below), whose sum is σ = 151145834112. Its totient is φ = 14373417600.

The previous prime is 55645340057. The next prime is 55645340089. The reversal of 55645340058 is 85004354655.

55645340058 is a `hidden beast` number, since 5 + 5 + 64 + 534 + 0 + 0 + 58 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 55645339995 and 55645340022.

It is not an unprimeable number, because it can be changed into a prime (55645340057) 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 47 ways as a sum of consecutive naturals, for example, 139960 + ... + 361772.

It is an arithmetic number, because the mean of its divisors is an integer number (1574435772).

Almost surely, 2^55645340058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55645340058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75572917056).

55645340058 is an abundant number, since it is smaller than the sum of its proper divisors (95500494054).

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

55645340058 is a wasteful number, since it uses less digits than its factorization.

55645340058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222020 (or 222017 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 55645340058 in words is "fifty-five billion, six hundred forty-five million, three hundred forty thousand, fifty-eight".