64366161408 has 200 divisors, whose sum is σ = 197313072792. Its totient is φ = 20875014144.

The previous prime is 64366161373. The next prime is 64366161449. The reversal of 64366161408 is 80416166346.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1513491 + ... + 1555437.

Almost surely, 2^64366161408 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 64366161408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98656536396).

64366161408 is an abundant number, since it is smaller than the sum of its proper divisors (132946911384).

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

64366161408 is an equidigital number, since it uses as much as digits as its factorization.

64366161408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42014 (or 41989 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 64366161408 in words is "sixty-four billion, three hundred sixty-six million, one hundred sixty-one thousand, four hundred eight".