66157904114 has 8 divisors (see below), whose sum is σ = 100115058780. Its totient is φ = 32786217856.

The previous prime is 66157904077. The next prime is 66157904117. The reversal of 66157904114 is 41140975166.

It is a happy number.

66157904114 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63471244225 + 2686659889 = 251935^2 + 51833^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66157904117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146366819 + ... + 146367270.

Almost surely, 2^66157904114 is an apocalyptic number.

66157904114 is a deficient number, since it is larger than the sum of its proper divisors (33957154666).

66157904114 is a wasteful number, since it uses less digits than its factorization.

66157904114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292734204.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 66157904114 in words is "sixty-six billion, one hundred fifty-seven million, nine hundred four thousand, one hundred fourteen".