102655623677 has 2 divisors, whose sum is σ = 102655623678. Its totient is φ = 102655623676.

The previous prime is 102655623647. The next prime is 102655623689. The reversal of 102655623677 is 776326556201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73177824196 + 29477799481 = 270514^2 + 171691^2 .

It is a cyclic number.

It is not a de Polignac number, because 102655623677 - 2¹⁸ = 102655361533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102655623647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51327811838 + 51327811839.

It is an arithmetic number, because the mean of its divisors is an integer number (51327811839).

Almost surely, 2^102655623677 is an apocalyptic number.

It is an amenable number.

102655623677 is a deficient number, since it is larger than the sum of its proper divisors (1).

102655623677 is an equidigital number, since it uses as much as digits as its factorization.

102655623677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 102655623677 in words is "one hundred two billion, six hundred fifty-five million, six hundred twenty-three thousand, six hundred seventy-seven".