102090841065 has 12 divisors (see below), whose sum is σ = 176957457924. Its totient is φ = 54448448544.

The previous prime is 102090841063. The next prime is 102090841091. The reversal of 102090841065 is 560148090201.

It can be written as a sum of positive squares in 2 ways, for example, as 62306150544 + 39784690521 = 249612^2 + 199461^2 .

It is not a de Polignac number, because 102090841065 - 2¹ = 102090841063 is a prime.

It is a super-3 number, since 3×102090841065³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102090841063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1134342634 + ... + 1134342723.

It is an arithmetic number, because the mean of its divisors is an integer number (14746454827).

Almost surely, 2^102090841065 is an apocalyptic number.

102090841065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102090841065 is a deficient number, since it is larger than the sum of its proper divisors (74866616859).

102090841065 is a wasteful number, since it uses less digits than its factorization.

102090841065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268685368 (or 2268685365 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 102090841065 in words is "one hundred two billion, ninety million, eight hundred forty-one thousand, sixty-five".