66651153 has 8 divisors (see below), whose sum is σ = 89138016. Its totient is φ = 44299200.

The previous prime is 66651119. The next prime is 66651253. The reversal of 66651153 is 35115666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66651153 - 2⁶ = 66651089 is a prime.

It is a super-3 number, since 3×66651153³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66651253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32568 + ... + 34553.

It is an arithmetic number, because the mean of its divisors is an integer number (11142252).

Almost surely, 2^66651153 is an apocalyptic number.

It is an amenable number.

66651153 is a deficient number, since it is larger than the sum of its proper divisors (22486863).

66651153 is a wasteful number, since it uses less digits than its factorization.

66651153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67455.

The product of its digits is 16200, while the sum is 33.

The square root of 66651153 is about 8164.0157398182. The cubic root of 66651153 is about 405.4486781801.

The spelling of 66651153 in words is "sixty-six million, six hundred fifty-one thousand, one hundred fifty-three".