102516102517 has 4 divisors (see below), whose sum is σ = 107911686880. Its totient is φ = 97120518156.

The previous prime is 102516102497. The next prime is 102516102539. The reversal of 102516102517 is 715201615201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102516102517 - 2²³ = 102507713909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102516102317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2697792153 + ... + 2697792190.

It is an arithmetic number, because the mean of its divisors is an integer number (26977921720).

Almost surely, 2^102516102517 is an apocalyptic number.

It is an amenable number.

102516102517 is a deficient number, since it is larger than the sum of its proper divisors (5395584363).

102516102517 is an equidigital number, since it uses as much as digits as its factorization.

102516102517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5395584362.

The product of its (nonzero) digits is 4200, while the sum is 31.

Adding to 102516102517 its reverse (715201615201), we get a palindrome (817717717718).

The spelling of 102516102517 in words is "one hundred two billion, five hundred sixteen million, one hundred two thousand, five hundred seventeen".