66156341 has 8 divisors (see below), whose sum is σ = 66831744. Its totient is φ = 65484000.

The previous prime is 66156289. The next prime is 66156353. The reversal of 66156341 is 14365166.

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 66156341 - 2¹⁸ = 65894197 is a prime.

It is a super-2 number, since 2×66156341² = 8753322909016562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66156298 and 66156307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66156371) 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, 87716 + ... + 88466.

It is an arithmetic number, because the mean of its divisors is an integer number (8353968).

Almost surely, 2^66156341 is an apocalyptic number.

It is an amenable number.

66156341 is a deficient number, since it is larger than the sum of its proper divisors (675403).

66156341 is a wasteful number, since it uses less digits than its factorization.

66156341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531.

The product of its digits is 12960, while the sum is 32.

The square root of 66156341 is about 8133.6548365418. The cubic root of 66156341 is about 404.4428471544.

The spelling of 66156341 in words is "sixty-six million, one hundred fifty-six thousand, three hundred forty-one".