65980761 has 16 divisors (see below), whose sum is σ = 109682688. Its totient is φ = 34275600.

The previous prime is 65980753. The next prime is 65980769. The reversal of 65980761 is 16708956.

It is an interprime number because it is at equal distance from previous prime (65980753) and next prime (65980769).

It is not a de Polignac number, because 65980761 - 2³ = 65980753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65980769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142585 + ... + 143046.

It is an arithmetic number, because the mean of its divisors is an integer number (6855168).

Almost surely, 2^65980761 is an apocalyptic number.

It is an amenable number.

65980761 is a deficient number, since it is larger than the sum of its proper divisors (43701927).

65980761 is a wasteful number, since it uses less digits than its factorization.

65980761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285652.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 65980761 is about 8122.8542397362. The cubic root of 65980761 is about 404.0847308639.

The spelling of 65980761 in words is "sixty-five million, nine hundred eighty thousand, seven hundred sixty-one".