66344265435004 has 24 divisors (see below), whose sum is σ = 116833863274128. Its totient is φ = 32963751125760.

The previous prime is 66344265434999. The next prime is 66344265435079. The reversal of 66344265435004 is 40053456244366.

It is a super-2 number, since 2×66344265435004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73234879 + ... + 74135254.

It is an arithmetic number, because the mean of its divisors is an integer number (4868077636422).

Almost surely, 2^{66344265435004} is an apocalyptic number.

It is an amenable number.

66344265435004 is a deficient number, since it is larger than the sum of its proper divisors (50489597839124).

66344265435004 is a wasteful number, since it uses less digits than its factorization.

66344265435004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147370845 (or 147370843 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 52.

The spelling of 66344265435004 in words is "sixty-six trillion, three hundred forty-four billion, two hundred sixty-five million, four hundred thirty-five thousand, four".