65101601 has 2 divisors, whose sum is σ = 65101602. Its totient is φ = 65101600.

The previous prime is 65101591. The next prime is 65101633. The reversal of 65101601 is 10610156.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 17007376 = 6935^2 + 4124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65101601 is a prime.

It is not a weakly prime, because it can be changed into another prime (65101651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32550800 + 32550801.

It is an arithmetic number, because the mean of its divisors is an integer number (32550801).

Almost surely, 2^65101601 is an apocalyptic number.

It is an amenable number.

65101601 is a deficient number, since it is larger than the sum of its proper divisors (1).

65101601 is an equidigital number, since it uses as much as digits as its factorization.

65101601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 65101601 is about 8068.5563144840. The cubic root of 65101601 is about 402.2819589852.

Adding to 65101601 its reverse (10610156), we get a palindrome (75711757).

The spelling of 65101601 in words is "sixty-five million, one hundred one thousand, six hundred one".