20013653425157 has 4 divisors (see below), whose sum is σ = 22872746771616. Its totient is φ = 17154560078700.

The previous prime is 20013653425123. The next prime is 20013653425189. The reversal of 20013653425157 is 75152435631002.

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 20013653425157 - 2⁶ = 20013653425093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013653422157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429546673219 + ... + 1429546673232.

It is an arithmetic number, because the mean of its divisors is an integer number (5718186692904).

Almost surely, 2^{20013653425157} is an apocalyptic number.

It is an amenable number.

20013653425157 is a deficient number, since it is larger than the sum of its proper divisors (2859093346459).

20013653425157 is an equidigital number, since it uses as much as digits as its factorization.

20013653425157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859093346458.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 20013653425157 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred twenty-five thousand, one hundred fifty-seven".