601665561151 has 2 divisors, whose sum is σ = 601665561152. Its totient is φ = 601665561150.

The previous prime is 601665561137. The next prime is 601665561187. The reversal of 601665561151 is 151165566106.

601665561151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 601665561151 - 2³¹ = 599518077503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 601665561098 and 601665561107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601665561191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300832780575 + 300832780576.

It is an arithmetic number, because the mean of its divisors is an integer number (300832780576).

Almost surely, 2^601665561151 is an apocalyptic number.

601665561151 is a deficient number, since it is larger than the sum of its proper divisors (1).

601665561151 is an equidigital number, since it uses as much as digits as its factorization.

601665561151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 601665561151 in words is "six hundred one billion, six hundred sixty-five million, five hundred sixty-one thousand, one hundred fifty-one".