65980744 has 16 divisors (see below), whose sum is σ = 129093120. Its totient is φ = 31555920.

The previous prime is 65980727. The next prime is 65980751. The reversal of 65980744 is 44708956.

It is a super-3 number, since 3×65980744³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65980744.

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, 179112 + ... + 179479.

It is an arithmetic number, because the mean of its divisors is an integer number (8068320).

Almost surely, 2^65980744 is an apocalyptic number.

It is an amenable number.

65980744 is a deficient number, since it is larger than the sum of its proper divisors (63112376).

65980744 is a wasteful number, since it uses less digits than its factorization.

65980744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358620 (or 358616 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 65980744 is about 8122.8531933059. The cubic root of 65980744 is about 404.0846961597.

The spelling of 65980744 in words is "sixty-five million, nine hundred eighty thousand, seven hundred forty-four".