65142080 has 28 divisors (see below), whose sum is σ = 155120340. Its totient is φ = 26056704.

The previous prime is 65142073. The next prime is 65142097. The reversal of 65142080 is 8024156.

It can be written as a sum of positive squares in 2 ways, for example, as 8952064 + 56190016 = 2992^2 + 7496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101465 + ... + 102104.

Almost surely, 2^65142080 is an apocalyptic number.

It is an amenable number.

65142080 is an abundant number, since it is smaller than the sum of its proper divisors (89978260).

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

65142080 is a wasteful number, since it uses less digits than its factorization.

65142080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203586 (or 203576 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 65142080 is about 8071.0643659929. The cubic root of 65142080 is about 402.3653189298.

The spelling of 65142080 in words is "sixty-five million, one hundred forty-two thousand, eighty".