66887541358 has 24 divisors (see below), whose sum is σ = 111149934336. Its totient is φ = 30164016960.

The previous prime is 66887541349. The next prime is 66887541359. The reversal of 66887541358 is 85314578866.

It is a junction number, because it is equal to n+sod(n) for n = 66887541296 and 66887541305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66887541359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1057435 + ... + 1118902.

It is an arithmetic number, because the mean of its divisors is an integer number (4631247264).

Almost surely, 2^66887541358 is an apocalyptic number.

66887541358 is a deficient number, since it is larger than the sum of its proper divisors (44262392978).

66887541358 is a wasteful number, since it uses less digits than its factorization.

66887541358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176488 (or 2176477 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 61.

The spelling of 66887541358 in words is "sixty-six billion, eight hundred eighty-seven million, five hundred forty-one thousand, three hundred fifty-eight".