66414301639 has 12 divisors (see below), whose sum is σ = 77865786624. Its totient is φ = 56478298464.

The previous prime is 66414301633. The next prime is 66414301651. The reversal of 66414301639 is 93610341466.

It is not a de Polignac number, because 66414301639 - 2⁵ = 66414301607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66414301595 and 66414301604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66414301633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5329974 + ... + 5342419.

It is an arithmetic number, because the mean of its divisors is an integer number (6488815552).

Almost surely, 2^66414301639 is an apocalyptic number.

66414301639 is a deficient number, since it is larger than the sum of its proper divisors (11451484985).

66414301639 is a wasteful number, since it uses less digits than its factorization.

66414301639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10672534 (or 10672527 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 66414301639 in words is "sixty-six billion, four hundred fourteen million, three hundred one thousand, six hundred thirty-nine".