66754023 has 12 divisors (see below), whose sum is σ = 103537080. Its totient is φ = 38145072.

The previous prime is 66754021. The next prime is 66754033. The reversal of 66754023 is 32045766.

It is not a de Polignac number, because 66754023 - 2¹ = 66754021 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66754021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226908 + ... + 227201.

It is an arithmetic number, because the mean of its divisors is an integer number (8628090).

Almost surely, 2^66754023 is an apocalyptic number.

66754023 is a deficient number, since it is larger than the sum of its proper divisors (36783057).

66754023 is a wasteful number, since it uses less digits than its factorization.

66754023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454126 (or 454119 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 66754023 is about 8170.3135190762. The cubic root of 66754023 is about 405.6571620260.

Adding to 66754023 its reverse (32045766), we get a palindrome (98799789).

The spelling of 66754023 in words is "sixty-six million, seven hundred fifty-four thousand, twenty-three".