65161677 has 16 divisors (see below), whose sum is σ = 99717120. Its totient is φ = 37076592.

The previous prime is 65161673. The next prime is 65161687. The reversal of 65161677 is 77616156.

It is not a de Polignac number, because 65161677 - 2² = 65161673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65161673) 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, 1473 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (6232320).

Almost surely, 2^65161677 is an apocalyptic number.

It is an amenable number.

65161677 is a deficient number, since it is larger than the sum of its proper divisors (34555443).

65161677 is a wasteful number, since it uses less digits than its factorization.

65161677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13232.

The product of its digits is 52920, while the sum is 39.

The square root of 65161677 is about 8072.2783029328. The cubic root of 65161677 is about 402.4056633717.

The spelling of 65161677 in words is "sixty-five million, one hundred sixty-one thousand, six hundred seventy-seven".