66626141 has 16 divisors (see below), whose sum is σ = 72230400. Its totient is φ = 61259328.

The previous prime is 66626123. The next prime is 66626173. The reversal of 66626141 is 14162666.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66626141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66626098 and 66626107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66626191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109460 + ... + 110066.

It is an arithmetic number, because the mean of its divisors is an integer number (4514400).

Almost surely, 2^66626141 is an apocalyptic number.

It is an amenable number.

66626141 is a deficient number, since it is larger than the sum of its proper divisors (5604259).

66626141 is a wasteful number, since it uses less digits than its factorization.

66626141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788.

The product of its digits is 10368, while the sum is 32.

The square root of 66626141 is about 8162.4837518981. The cubic root of 66626141 is about 405.3979546207.

The spelling of 66626141 in words is "sixty-six million, six hundred twenty-six thousand, one hundred forty-one".