120065566464 has 180 divisors, whose sum is σ = 358541645616. Its totient is φ = 39962861568.

The previous prime is 120065566417. The next prime is 120065566469. The reversal of 120065566464 is 464665560021.

120065566464 is a `hidden beast` number, since 1 + 20 + 0 + 6 + 5 + 566 + 4 + 64 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120065566469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15402952 + ... + 15410744.

Almost surely, 2^120065566464 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 120065566464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179270822808).

120065566464 is an abundant number, since it is smaller than the sum of its proper divisors (238476079152).

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

120065566464 is an frugal number, since it uses more digits than its factorization.

120065566464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564 (or 8541 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 120065566464 in words is "one hundred twenty billion, sixty-five million, five hundred sixty-six thousand, four hundred sixty-four".