102122635617 has 6 divisors (see below), whose sum is σ = 147510473682. Its totient is φ = 68081757072.

The previous prime is 102122635613. The next prime is 102122635627. The reversal of 102122635617 is 716536221201.

102122635617 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 2 + 2 + 6 + 35 + 617 = 666.

It can be written as a sum of positive squares in only one way, i.e., 86854573521 + 15268062096 = 294711^2 + 123564^2 .

It is not a de Polignac number, because 102122635617 - 2² = 102122635613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102122635613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5673479748 + ... + 5673479765.

It is an arithmetic number, because the mean of its divisors is an integer number (24585078947).

Almost surely, 2^102122635617 is an apocalyptic number.

It is an amenable number.

102122635617 is a deficient number, since it is larger than the sum of its proper divisors (45387838065).

102122635617 is a wasteful number, since it uses less digits than its factorization.

102122635617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346959519 (or 11346959516 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Adding to 102122635617 its reverse (716536221201), we get a palindrome (818658856818).

The spelling of 102122635617 in words is "one hundred two billion, one hundred twenty-two million, six hundred thirty-five thousand, six hundred seventeen".