1662275051 has 2 divisors, whose sum is σ = 1662275052. Its totient is φ = 1662275050.

The previous prime is 1662275029. The next prime is 1662275053. The reversal of 1662275051 is 1505722661.

It is a strong prime.

It is an emirp because it is prime and its reverse (1505722661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1662275051 - 2¹⁰ = 1662274027 is a prime.

Together with 1662275053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1662275053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831137525 + 831137526.

It is an arithmetic number, because the mean of its divisors is an integer number (831137526).

Almost surely, 2^1662275051 is an apocalyptic number.

1662275051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662275051 is an equidigital number, since it uses as much as digits as its factorization.

1662275051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 1662275051 is about 40771.0074808068. The cubic root of 1662275051 is about 1184.5888182744.

The spelling of 1662275051 in words is "one billion, six hundred sixty-two million, two hundred seventy-five thousand, fifty-one".