66436160 has 168 divisors, whose sum is σ = 194584320. Its totient is φ = 21482496.

The previous prime is 66436159. The next prime is 66436169. The reversal of 66436160 is 6163466.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (66436169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297809 + ... + 298031.

It is an arithmetic number, because the mean of its divisors is an integer number (1158240).

Almost surely, 2^66436160 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 66436160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97292160).

66436160 is an abundant number, since it is smaller than the sum of its proper divisors (128148160).

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

66436160 is a wasteful number, since it uses less digits than its factorization.

66436160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66436160 is about 8150.8379937280. The cubic root of 66436160 is about 405.0122640192.

The spelling of 66436160 in words is "sixty-six million, four hundred thirty-six thousand, one hundred sixty".