65041920 has 160 divisors (see below), whose sum is σ = 231279840. Its totient is φ = 17326080.

The previous prime is 65041913. The next prime is 65041931. The reversal of 65041920 is 2914056.

65041920 is a `hidden beast` number, since 650 + 4 + 1 + 9 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 68650 + ... + 69590.

It is an arithmetic number, because the mean of its divisors is an integer number (1445499).

Almost surely, 2^65041920 is an apocalyptic number.

65041920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65041920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115639920).

65041920 is an abundant number, since it is smaller than the sum of its proper divisors (166237920).

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

65041920 is an equidigital number, since it uses as much as digits as its factorization.

65041920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 951 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 65041920 is about 8064.8570973080. The cubic root of 65041920 is about 402.1589925784.

Adding to 65041920 its reverse (2914056), we get a palindrome (67955976).

The spelling of 65041920 in words is "sixty-five million, forty-one thousand, nine hundred twenty".