2662655657 has 2 divisors, whose sum is σ = 2662655658. Its totient is φ = 2662655656.

The previous prime is 2662655623. The next prime is 2662655659. The reversal of 2662655657 is 7565562662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1736305561 + 926350096 = 41669^2 + 30436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662655657 - 2¹⁶ = 2662590121 is a prime.

Together with 2662655659, 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 (2662655659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331327828 + 1331327829.

It is an arithmetic number, because the mean of its divisors is an integer number (1331327829).

Almost surely, 2^2662655657 is an apocalyptic number.

It is an amenable number.

2662655657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662655657 is an equidigital number, since it uses as much as digits as its factorization.

2662655657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536000, while the sum is 50.

The square root of 2662655657 is about 51600.9269005897. The cubic root of 2662655657 is about 1386.0269301245.

The spelling of 2662655657 in words is "two billion, six hundred sixty-two million, six hundred fifty-five thousand, six hundred fifty-seven".