102500443465 has 12 divisors (see below), whose sum is σ = 143082252036. Its totient is φ = 70286018208.

The previous prime is 102500443459. The next prime is 102500443471. The reversal of 102500443465 is 564344005201.

It is an interprime number because it is at equal distance from previous prime (102500443459) and next prime (102500443471).

It can be written as a sum of positive squares in 2 ways, for example, as 23578216704 + 78922226761 = 153552^2 + 280931^2 .

It is not a de Polignac number, because 102500443465 - 2⁹ = 102500442953 is a prime.

It is a super-2 number, since 2×102500443465² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102500443465.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209184334 + ... + 209184823.

It is an arithmetic number, because the mean of its divisors is an integer number (11923521003).

Almost surely, 2^102500443465 is an apocalyptic number.

It is an amenable number.

102500443465 is a deficient number, since it is larger than the sum of its proper divisors (40581808571).

102500443465 is an equidigital number, since it uses as much as digits as its factorization.

102500443465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418369176 (or 418369169 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 102500443465 its reverse (564344005201), we get a palindrome (666844448666).

The spelling of 102500443465 in words is "one hundred two billion, five hundred million, four hundred forty-three thousand, four hundred sixty-five".