65161760 has 48 divisors (see below), whose sum is σ = 160646976. Its totient is φ = 24930048.

The previous prime is 65161729. The next prime is 65161763. The reversal of 65161760 is 6716156.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (65161763) 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, 5174 + ... + 12533.

It is an arithmetic number, because the mean of its divisors is an integer number (3346812).

Almost surely, 2^65161760 is an apocalyptic number.

It is an amenable number.

65161760 is an abundant number, since it is smaller than the sum of its proper divisors (95485216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65161760 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 65161760 = (10666571)₁₃.

65161760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17745 (or 17737 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 65161760 is about 8072.2834439829. The cubic root of 65161760 is about 402.4058342270.

The spelling of 65161760 in words is "sixty-five million, one hundred sixty-one thousand, seven hundred sixty".