66617150143 has 8 divisors (see below), whose sum is σ = 70127115120. Its totient is φ = 63107565120.

The previous prime is 66617150111. The next prime is 66617150167. The reversal of 66617150143 is 34105171666.

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 66617150143 - 2⁵ = 66617150111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66617150096 and 66617150105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66617150183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309003 + ... + 478243.

It is an arithmetic number, because the mean of its divisors is an integer number (8765889390).

Almost surely, 2^66617150143 is an apocalyptic number.

66617150143 is a deficient number, since it is larger than the sum of its proper divisors (3509964977).

66617150143 is a wasteful number, since it uses less digits than its factorization.

66617150143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189977.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 66617150143 in words is "sixty-six billion, six hundred seventeen million, one hundred fifty thousand, one hundred forty-three".