66046398412 has 6 divisors (see below), whose sum is σ = 115581197228. Its totient is φ = 33023199204.

The previous prime is 66046398367. The next prime is 66046398413. The reversal of 66046398412 is 21489364066.

66046398412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66046398412² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66046398413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8255799798 + ... + 8255799805.

Almost surely, 2^66046398412 is an apocalyptic number.

It is an amenable number.

66046398412 is a deficient number, since it is larger than the sum of its proper divisors (49534798816).

66046398412 is a wasteful number, since it uses less digits than its factorization.

66046398412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16511599607 (or 16511599605 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 66046398412 in words is "sixty-six billion, forty-six million, three hundred ninety-eight thousand, four hundred twelve".