66142023 has 8 divisors (see below), whose sum is σ = 88585728. Its totient is φ = 43896504.

The previous prime is 66141991. The next prime is 66142033. The reversal of 66142023 is 32024166.

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

It is not a de Polignac number, because 66142023 - 2⁵ = 66141991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66141984 and 66142002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66142033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48765 + ... + 50102.

It is an arithmetic number, because the mean of its divisors is an integer number (11073216).

Almost surely, 2^66142023 is an apocalyptic number.

66142023 is a deficient number, since it is larger than the sum of its proper divisors (22443705).

66142023 is a wasteful number, since it uses less digits than its factorization.

66142023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99093.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 66142023 is about 8132.7746187879. The cubic root of 66142023 is about 404.4136676361.

Adding to 66142023 its reverse (32024166), we get a palindrome (98166189).

The spelling of 66142023 in words is "sixty-six million, one hundred forty-two thousand, twenty-three".