102155426161 has 4 divisors (see below), whose sum is σ = 103386214512. Its totient is φ = 100924637812.

The previous prime is 102155426147. The next prime is 102155426167. The reversal of 102155426161 is 161624551201.

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 102155426161 - 2¹⁵ = 102155393393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102155426167) 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, 615394051 + ... + 615394216.

It is an arithmetic number, because the mean of its divisors is an integer number (25846553628).

Almost surely, 2^102155426161 is an apocalyptic number.

It is an amenable number.

102155426161 is a deficient number, since it is larger than the sum of its proper divisors (1230788351).

102155426161 is an equidigital number, since it uses as much as digits as its factorization.

102155426161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230788350.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 102155426161 its reverse (161624551201), we get a palindrome (263779977362).

The spelling of 102155426161 in words is "one hundred two billion, one hundred fifty-five million, four hundred twenty-six thousand, one hundred sixty-one".