65161101 has 16 divisors (see below), whose sum is σ = 89929728. Its totient is φ = 41924400.

The previous prime is 65161081. The next prime is 65161121. The reversal of 65161101 is 10116156.

It is an interprime number because it is at equal distance from previous prime (65161081) and next prime (65161121).

It is not a de Polignac number, because 65161101 - 2⁵ = 65161069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65161121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44950 + ... + 46376.

It is an arithmetic number, because the mean of its divisors is an integer number (5620608).

Almost surely, 2^65161101 is an apocalyptic number.

It is an amenable number.

65161101 is a deficient number, since it is larger than the sum of its proper divisors (24768627).

65161101 is a wasteful number, since it uses less digits than its factorization.

65161101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 65161101 is about 8072.2426251941. The cubic root of 65161101 is about 402.4044776730.

Adding to 65161101 its reverse (10116156), we get a palindrome (75277257).

The spelling of 65161101 in words is "sixty-five million, one hundred sixty-one thousand, one hundred one".