20759308157 has 16 divisors (see below), whose sum is σ = 23896664064. Its totient is φ = 17665350000.

The previous prime is 20759308111. The next prime is 20759308159. The reversal of 20759308157 is 75180395702.

It is a cyclic number.

It is not a de Polignac number, because 20759308157 - 2⁸ = 20759307901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20759308159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527432 + ... + 565422.

It is an arithmetic number, because the mean of its divisors is an integer number (1493541504).

Almost surely, 2^20759308157 is an apocalyptic number.

It is an amenable number.

20759308157 is a deficient number, since it is larger than the sum of its proper divisors (3137355907).

20759308157 is a wasteful number, since it uses less digits than its factorization.

20759308157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38560.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 20759308157 in words is "twenty billion, seven hundred fifty-nine million, three hundred eight thousand, one hundred fifty-seven".