20570202070151 has 4 divisors (see below), whose sum is σ = 21007865944032. Its totient is φ = 20132538196272.

The previous prime is 20570202070111. The next prime is 20570202070153. The reversal of 20570202070151 is 15107020207502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20570202070151 - 2⁶ = 20570202070087 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 (20570202070153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218831936870 + ... + 218831936963.

It is an arithmetic number, because the mean of its divisors is an integer number (5251966486008).

Almost surely, 2^{20570202070151} is an apocalyptic number.

20570202070151 is a deficient number, since it is larger than the sum of its proper divisors (437663873881).

20570202070151 is an equidigital number, since it uses as much as digits as its factorization.

20570202070151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437663873880.

The product of its (nonzero) digits is 9800, while the sum is 32.

Adding to 20570202070151 its reverse (15107020207502), we get a palindrome (35677222277653).

The spelling of 20570202070151 in words is "twenty trillion, five hundred seventy billion, two hundred two million, seventy thousand, one hundred fifty-one".