66152423 has 8 divisors (see below), whose sum is σ = 70434000. Its totient is φ = 61914240.

The previous prime is 66152417. The next prime is 66152479. The reversal of 66152423 is 32425166.

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

It is a cyclic number.

It is not a de Polignac number, because 66152423 - 2¹⁰ = 66151399 is a prime.

It is a super-2 number, since 2×66152423² = 8752286137541858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66152413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7673 + ... + 13826.

It is an arithmetic number, because the mean of its divisors is an integer number (8804250).

Almost surely, 2^66152423 is an apocalyptic number.

66152423 is a deficient number, since it is larger than the sum of its proper divisors (4281577).

66152423 is a wasteful number, since it uses less digits than its factorization.

66152423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21697.

The product of its digits is 8640, while the sum is 29.

The square root of 66152423 is about 8133.4139818406. The cubic root of 66152423 is about 404.4348628436.

Adding to 66152423 its reverse (32425166), we get a palindrome (98577589).

The spelling of 66152423 in words is "sixty-six million, one hundred fifty-two thousand, four hundred twenty-three".