20104009157 has 8 divisors (see below), whose sum is σ = 20196311040. Its totient is φ = 20011746960.

The previous prime is 20104009111. The next prime is 20104009169. The reversal of 20104009157 is 75190040102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20104009157 - 2¹⁴ = 20103992773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104009357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576268 + ... + 1588970.

It is an arithmetic number, because the mean of its divisors is an integer number (2524538880).

Almost surely, 2^20104009157 is an apocalyptic number.

It is an amenable number.

20104009157 is a deficient number, since it is larger than the sum of its proper divisors (92301883).

20104009157 is a wasteful number, since it uses less digits than its factorization.

20104009157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 20104009157 its reverse (75190040102), we get a palindrome (95294049259).

The spelling of 20104009157 in words is "twenty billion, one hundred four million, nine thousand, one hundred fifty-seven".