65165340 has 24 divisors (see below), whose sum is σ = 182463120. Its totient is φ = 17377408.

The previous prime is 65165311. The next prime is 65165341. The reversal of 65165340 is 4356156.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 65165298 and 65165307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65165341) 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, 542985 + ... + 543104.

It is an arithmetic number, because the mean of its divisors is an integer number (7602630).

Almost surely, 2^65165340 is an apocalyptic number.

65165340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65165340 is an abundant number, since it is smaller than the sum of its proper divisors (117297780).

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

65165340 is a wasteful number, since it uses less digits than its factorization.

65165340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086101 (or 1086099 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65165340 is about 8072.5051873628. The cubic root of 65165340 is about 402.4132035108.

The spelling of 65165340 in words is "sixty-five million, one hundred sixty-five thousand, three hundred forty".