65740672 has 32 divisors (see below), whose sum is σ = 131702400. Its totient is φ = 32686080.

The previous prime is 65740669. The next prime is 65740699. The reversal of 65740672 is 27604756.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×65740672³ (a number of 24 digits) contains 333 as substring.

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, 23104 + ... + 25792.

It is an arithmetic number, because the mean of its divisors is an integer number (4115700).

Almost surely, 2^65740672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65740672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65851200).

65740672 is an abundant number, since it is smaller than the sum of its proper divisors (65961728).

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

65740672 is a wasteful number, since it uses less digits than its factorization.

65740672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2882 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 65740672 is about 8108.0621605905. The cubic root of 65740672 is about 403.5940109967.

The spelling of 65740672 in words is "sixty-five million, seven hundred forty thousand, six hundred seventy-two".