66138096358 has 8 divisors (see below), whose sum is σ = 99230032152. Its totient is φ = 33061418976.

The previous prime is 66138096331. The next prime is 66138096391. The reversal of 66138096358 is 85369083166.

66138096358 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66138096299 and 66138096308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3803760 + ... + 3821107.

It is an arithmetic number, because the mean of its divisors is an integer number (12403754019).

Almost surely, 2^66138096358 is an apocalyptic number.

66138096358 is a deficient number, since it is larger than the sum of its proper divisors (33091935794).

66138096358 is a wasteful number, since it uses less digits than its factorization.

66138096358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7629206.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 66138096358 in words is "sixty-six billion, one hundred thirty-eight million, ninety-six thousand, three hundred fifty-eight".