129554325601 has 4 divisors (see below), whose sum is σ = 129849438400. Its totient is φ = 129259212804.

The previous prime is 129554325557. The next prime is 129554325629. The reversal of 129554325601 is 106523455921.

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 129554325601 - 2²⁵ = 129520771169 is a prime.

It is a super-2 number, since 2×129554325601² (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 (129554335601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147555741 + ... + 147556618.

It is an arithmetic number, because the mean of its divisors is an integer number (32462359600).

Almost surely, 2^129554325601 is an apocalyptic number.

It is an amenable number.

129554325601 is a deficient number, since it is larger than the sum of its proper divisors (295112799).

129554325601 is an equidigital number, since it uses as much as digits as its factorization.

129554325601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295112798.

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

The spelling of 129554325601 in words is "one hundred twenty-nine billion, five hundred fifty-four million, three hundred twenty-five thousand, six hundred one".