66415641346 has 8 divisors (see below), whose sum is σ = 99627275664. Its totient is φ = 33206549460.

The previous prime is 66415641337. The next prime is 66415641353. The reversal of 66415641346 is 64314651466.

66415641346 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 super-2 number, since 2×66415641346² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66415641296 and 66415641305.

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, 568900 + ... + 675631.

It is an arithmetic number, because the mean of its divisors is an integer number (12453409458).

Almost surely, 2^66415641346 is an apocalyptic number.

66415641346 is a deficient number, since it is larger than the sum of its proper divisors (33211634318).

66415641346 is a wasteful number, since it uses less digits than its factorization.

66415641346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271216.

The product of its digits is 1244160, while the sum is 46.

The spelling of 66415641346 in words is "sixty-six billion, four hundred fifteen million, six hundred forty-one thousand, three hundred forty-six".