665083151 has 2 divisors, whose sum is σ = 665083152. Its totient is φ = 665083150.

The previous prime is 665083147. The next prime is 665083171. The reversal of 665083151 is 151380566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 665083151 - 2² = 665083147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665083171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332541575 + 332541576.

It is an arithmetic number, because the mean of its divisors is an integer number (332541576).

Almost surely, 2^665083151 is an apocalyptic number.

665083151 is a deficient number, since it is larger than the sum of its proper divisors (1).

665083151 is an equidigital number, since it uses as much as digits as its factorization.

665083151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 665083151 is about 25789.2060947987. The cubic root of 665083151 is about 872.8882522060. Note that the first 3 decimals are identical.

The spelling of 665083151 in words is "six hundred sixty-five million, eighty-three thousand, one hundred fifty-one".