66472141 has 4 divisors (see below), whose sum is σ = 66653632. Its totient is φ = 66290652.

The previous prime is 66472099. The next prime is 66472157. The reversal of 66472141 is 14127466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66472141 - 2¹⁷ = 66341069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66472741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90195 + ... + 90928.

It is an arithmetic number, because the mean of its divisors is an integer number (16663408).

Almost surely, 2^66472141 is an apocalyptic number.

It is an amenable number.

66472141 is a deficient number, since it is larger than the sum of its proper divisors (181491).

66472141 is a wasteful number, since it uses less digits than its factorization.

66472141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181490.

The product of its digits is 8064, while the sum is 31.

The square root of 66472141 is about 8153.0448913274. The cubic root of 66472141 is about 405.0853673626.

The spelling of 66472141 in words is "sixty-six million, four hundred seventy-two thousand, one hundred forty-one".