66295488 has 112 divisors (see below), whose sum is σ = 202777344. Its totient is φ = 18723840.

The previous prime is 66295459. The next prime is 66295507. The reversal of 66295488 is 88459266.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143578 + ... + 144038.

It is an arithmetic number, because the mean of its divisors is an integer number (1810512).

Almost surely, 2^66295488 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 66295488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101388672).

66295488 is an abundant number, since it is smaller than the sum of its proper divisors (136481856).

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

66295488 is a wasteful number, since it uses less digits than its factorization.

66295488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 580 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 66295488 is about 8142.2041241914. The cubic root of 66295488 is about 404.7262042150.

The spelling of 66295488 in words is "sixty-six million, two hundred ninety-five thousand, four hundred eighty-eight".