66833152 has 36 divisors (see below), whose sum is σ = 135320976. Its totient is φ = 32936960.

The previous prime is 66833141. The next prime is 66833183. The reversal of 66833152 is 25133866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16338 + ... + 20014.

It is an arithmetic number, because the mean of its divisors is an integer number (3758916).

Almost surely, 2^66833152 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 66833152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67660488).

66833152 is an abundant number, since it is smaller than the sum of its proper divisors (68487824).

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

66833152 is an equidigital number, since it uses as much as digits as its factorization.

66833152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764 (or 3750 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 66833152 is about 8175.1545551139. The cubic root of 66833152 is about 405.8173849319.

The spelling of 66833152 in words is "sixty-six million, eight hundred thirty-three thousand, one hundred fifty-two".