66957103 has 8 divisors (see below), whose sum is σ = 67908240. Its totient is φ = 66010560.

The previous prime is 66957097. The next prime is 66957109. The reversal of 66957103 is 30175966.

It is an interprime number because it is at equal distance from previous prime (66957097) and next prime (66957109).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66957103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66957109) 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, 36576 + ... + 38362.

It is an arithmetic number, because the mean of its divisors is an integer number (8488530).

Almost surely, 2^66957103 is an apocalyptic number.

66957103 is a deficient number, since it is larger than the sum of its proper divisors (951137).

66957103 is a wasteful number, since it uses less digits than its factorization.

66957103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 66957103 is about 8182.7320009884. The cubic root of 66957103 is about 406.0681108279.

The spelling of 66957103 in words is "sixty-six million, nine hundred fifty-seven thousand, one hundred three".