65341780 has 48 divisors (see below), whose sum is σ = 157288320. Its totient is φ = 22336128.

The previous prime is 65341763. The next prime is 65341909. The reversal of 65341780 is 8714356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78406 + ... + 79234.

It is an arithmetic number, because the mean of its divisors is an integer number (3276840).

Almost surely, 2^65341780 is an apocalyptic number.

It is an amenable number.

65341780 is an abundant number, since it is smaller than the sum of its proper divisors (91946540).

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

65341780 is a wasteful number, since it uses less digits than its factorization.

65341780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 65341780 is about 8083.4262537615. The cubic root of 65341780 is about 402.7760640998.

The spelling of 65341780 in words is "sixty-five million, three hundred forty-one thousand, seven hundred eighty".