66610152 has 96 divisors (see below), whose sum is σ = 207792000. Its totient is φ = 18882432.

The previous prime is 66610147. The next prime is 66610157. The reversal of 66610152 is 25101666.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66610147) and next prime (66610157).

It is not an unprimeable number, because it can be changed into a prime (66610157) 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, 74653 + ... + 75539.

It is an arithmetic number, because the mean of its divisors is an integer number (2164500).

Almost surely, 2^66610152 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 66610152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103896000).

66610152 is an abundant number, since it is smaller than the sum of its proper divisors (141181848).

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

66610152 is a wasteful number, since it uses less digits than its factorization.

66610152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 66610152 is about 8161.5042731104. The cubic root of 66610152 is about 405.3655227735.

The spelling of 66610152 in words is "sixty-six million, six hundred ten thousand, one hundred fifty-two".