20157603241 has 4 divisors (see below), whose sum is σ = 20199686400. Its totient is φ = 20115520084.

The previous prime is 20157603233. The next prime is 20157603269. The reversal of 20157603241 is 14230675102.

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 20157603241 - 2³ = 20157603233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20157601241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21040861 + ... + 21041818.

It is an arithmetic number, because the mean of its divisors is an integer number (5049921600).

Almost surely, 2^20157603241 is an apocalyptic number.

It is an amenable number.

20157603241 is a deficient number, since it is larger than the sum of its proper divisors (42083159).

20157603241 is an equidigital number, since it uses as much as digits as its factorization.

20157603241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42083158.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 20157603241 in words is "twenty billion, one hundred fifty-seven million, six hundred three thousand, two hundred forty-one".