103556025620161 has 4 divisors (see below), whose sum is σ = 109647556539012. Its totient is φ = 97464494701312.

The previous prime is 103556025620153. The next prime is 103556025620197. The reversal of 103556025620161 is 161026520655301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87320726837136 + 16235298783025 = 9344556^2 + 4029305^2 .

It is a cyclic number.

It is not a de Polignac number, because 103556025620161 - 2³ = 103556025620153 is a prime.

It is a super-3 number, since 3×103556025620161³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103556025620261) 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, 3045765459400 + ... + 3045765459433.

It is an arithmetic number, because the mean of its divisors is an integer number (27411889134753).

Almost surely, 2^{103556025620161} is an apocalyptic number.

It is an amenable number.

103556025620161 is a deficient number, since it is larger than the sum of its proper divisors (6091530918851).

103556025620161 is an equidigital number, since it uses as much as digits as its factorization.

103556025620161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091530918850.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 103556025620161 in words is "one hundred three trillion, five hundred fifty-six billion, twenty-five million, six hundred twenty thousand, one hundred sixty-one".