102165255161 has 8 divisors (see below), whose sum is σ = 102422193120. Its totient is φ = 101908481248.

The previous prime is 102165255133. The next prime is 102165255209. The reversal of 102165255161 is 161552561201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102165255161 is a prime.

It is a super-2 number, since 2×102165255161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102165255961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257470 + ... + 1336248.

It is an arithmetic number, because the mean of its divisors is an integer number (12802774140).

Almost surely, 2^102165255161 is an apocalyptic number.

It is an amenable number.

102165255161 is a deficient number, since it is larger than the sum of its proper divisors (256937959).

102165255161 is an equidigital number, since it uses as much as digits as its factorization.

102165255161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82023.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 102165255161 in words is "one hundred two billion, one hundred sixty-five million, two hundred fifty-five thousand, one hundred sixty-one".