1662060251 has 2 divisors, whose sum is σ = 1662060252. Its totient is φ = 1662060250.

The previous prime is 1662060203. The next prime is 1662060259. The reversal of 1662060251 is 1520602661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1662060251 - 2¹⁰ = 1662059227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1662060259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831030125 + 831030126.

It is an arithmetic number, because the mean of its divisors is an integer number (831030126).

Almost surely, 2^1662060251 is an apocalyptic number.

1662060251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662060251 is an equidigital number, since it uses as much as digits as its factorization.

1662060251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1662060251 is about 40768.3731708784. The cubic root of 1662060251 is about 1184.5377916931.

The spelling of 1662060251 in words is "one billion, six hundred sixty-two million, sixty thousand, two hundred fifty-one".