66466023 has 16 divisors (see below), whose sum is σ = 98019936. Its totient is φ = 39795840.

The previous prime is 66466019. The next prime is 66466031. The reversal of 66466023 is 32066466.

It is not a de Polignac number, because 66466023 - 2² = 66466019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66466033) 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, 21588 + ... + 24473.

It is an arithmetic number, because the mean of its divisors is an integer number (6126246).

Almost surely, 2^66466023 is an apocalyptic number.

66466023 is a deficient number, since it is larger than the sum of its proper divisors (31553913).

66466023 is a wasteful number, since it uses less digits than its factorization.

66466023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46114.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 66466023 is about 8152.6696854466. The cubic root of 66466023 is about 405.0729391570.

The spelling of 66466023 in words is "sixty-six million, four hundred sixty-six thousand, twenty-three".