20837142094157 has 2 divisors, whose sum is σ = 20837142094158. Its totient is φ = 20837142094156.

The previous prime is 20837142094147. The next prime is 20837142094169. The reversal of 20837142094157 is 75149024173802.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19192556426761 + 1644585667396 = 4380931^2 + 1282414^2 .

It is a cyclic number.

It is not a de Polignac number, because 20837142094157 - 2²⁸ = 20836873658701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20837142094099 and 20837142094108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20837142094147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10418571047078 + 10418571047079.

It is an arithmetic number, because the mean of its divisors is an integer number (10418571047079).

Almost surely, 2^{20837142094157} is an apocalyptic number.

It is an amenable number.

20837142094157 is a deficient number, since it is larger than the sum of its proper divisors (1).

20837142094157 is an equidigital number, since it uses as much as digits as its factorization.

20837142094157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 20837142094157 in words is "twenty trillion, eight hundred thirty-seven billion, one hundred forty-two million, ninety-four thousand, one hundred fifty-seven".