15355550641 has 4 divisors (see below), whose sum is σ = 15584738032. Its totient is φ = 15126363252.

The previous prime is 15355550603. The next prime is 15355550681. The reversal of 15355550641 is 14605555351.

It is a happy number.

15355550641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15355550641 - 2¹⁹ = 15355026353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15355550594 and 15355550603.

It is not an unprimeable number, because it can be changed into a prime (15355550681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114593595 + ... + 114593728.

It is an arithmetic number, because the mean of its divisors is an integer number (3896184508).

Almost surely, 2^15355550641 is an apocalyptic number.

It is an amenable number.

15355550641 is a deficient number, since it is larger than the sum of its proper divisors (229187391).

15355550641 is an equidigital number, since it uses as much as digits as its factorization.

15355550641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229187390.

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 15355550641 in words is "fifteen billion, three hundred fifty-five million, five hundred fifty thousand, six hundred forty-one".