66361452 has 96 divisors (see below), whose sum is σ = 173107200. Its totient is φ = 19699200.

The previous prime is 66361441. The next prime is 66361531. The reversal of 66361452 is 25416366.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289674 + ... + 289902.

It is an arithmetic number, because the mean of its divisors is an integer number (1803200).

Almost surely, 2^66361452 is an apocalyptic number.

66361452 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66361452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86553600).

66361452 is an abundant number, since it is smaller than the sum of its proper divisors (106745748).

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

66361452 is a wasteful number, since it uses less digits than its factorization.

66361452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 325 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 66361452 is about 8146.2538629728. The cubic root of 66361452 is about 404.8603938882.

It can be divided in two parts, 66 and 361452, that multiplied together give a palindrome (23855832).

The spelling of 66361452 in words is "sixty-six million, three hundred sixty-one thousand, four hundred fifty-two".