42366387066864 has 320 divisors, whose sum is σ = 127630551121920. Its totient is φ = 11860886568960.

The previous prime is 42366387066863. The next prime is 42366387066869. The reversal of 42366387066864 is 46866078366324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42366387066863) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1798145644 + ... + 1798169204.

It is an arithmetic number, because the mean of its divisors is an integer number (398845472256).

Almost surely, 2^{42366387066864} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42366387066864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63815275560960).

42366387066864 is an abundant number, since it is smaller than the sum of its proper divisors (85264164055056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42366387066864 is a wasteful number, since it uses less digits than its factorization.

42366387066864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24208 (or 24202 counting only the distinct ones).

The product of its (nonzero) digits is 1003290624, while the sum is 69.

The spelling of 42366387066864 in words is "forty-two trillion, three hundred sixty-six billion, three hundred eighty-seven million, sixty-six thousand, eight hundred sixty-four".