65970980 has 24 divisors (see below), whose sum is σ = 139556088. Its totient is φ = 26194688.

The previous prime is 65970977. The next prime is 65970997. The reversal of 65970980 is 8907956.

It can be written as a sum of positive squares in 4 ways, for example, as 23251684 + 42719296 = 4822^2 + 6536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9299 + ... + 14778.

It is an arithmetic number, because the mean of its divisors is an integer number (5814837).

Almost surely, 2^65970980 is an apocalyptic number.

It is an amenable number.

65970980 is an abundant number, since it is smaller than the sum of its proper divisors (73585108).

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

65970980 is a wasteful number, since it uses less digits than its factorization.

65970980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24223 (or 24221 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 65970980 is about 8122.2521507277. The cubic root of 65970980 is about 404.0647626792.

The spelling of 65970980 in words is "sixty-five million, nine hundred seventy thousand, nine hundred eighty".