66767039458 has 12 divisors (see below), whose sum is σ = 116501671062. Its totient is φ = 28614445440.

The previous prime is 66767039447. The next prime is 66767039489. The reversal of 66767039458 is 85493076766.

66767039458 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 only one way, i.e., 52905980169 + 13861059289 = 230013^2 + 117733^2 .

It is a super-2 number, since 2×66767039458² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66767039396 and 66767039405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340648063 + ... + 340648258.

Almost surely, 2^66767039458 is an apocalyptic number.

66767039458 is a deficient number, since it is larger than the sum of its proper divisors (49734631604).

66767039458 is a wasteful number, since it uses less digits than its factorization.

66767039458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681296337 (or 681296330 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 66767039458 in words is "sixty-six billion, seven hundred sixty-seven million, thirty-nine thousand, four hundred fifty-eight".