65657141 has 12 divisors (see below), whose sum is σ = 75969600. Its totient is φ = 56544840.

The previous prime is 65657099. The next prime is 65657143. The reversal of 65657141 is 14175656.

It is a de Polignac number, because none of the positive numbers 2^k-65657141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65657143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11981 + ... + 16578.

It is an arithmetic number, because the mean of its divisors is an integer number (6330800).

Almost surely, 2^65657141 is an apocalyptic number.

It is an amenable number.

65657141 is a deficient number, since it is larger than the sum of its proper divisors (10312459).

65657141 is a wasteful number, since it uses less digits than its factorization.

65657141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28600 (or 28589 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 65657141 is about 8102.9094157593. The cubic root of 65657141 is about 403.4230011841.

The spelling of 65657141 in words is "sixty-five million, six hundred fifty-seven thousand, one hundred forty-one".