20627159069 has 24 divisors (see below), whose sum is σ = 24903856320. Its totient is φ = 16992581760.

The previous prime is 20627159051. The next prime is 20627159177. The reversal of 20627159069 is 96095172602.

It is not a de Polignac number, because 20627159069 - 2¹⁶ = 20627093533 is a prime.

It is a super-2 number, since 2×20627159069² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20627159029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142172 + ... + 247925.

It is an arithmetic number, because the mean of its divisors is an integer number (1037660680).

Almost surely, 2^20627159069 is an apocalyptic number.

It is an amenable number.

20627159069 is a deficient number, since it is larger than the sum of its proper divisors (4276697251).

20627159069 is a wasteful number, since it uses less digits than its factorization.

20627159069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390161 (or 390150 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 20627159069 in words is "twenty billion, six hundred twenty-seven million, one hundred fifty-nine thousand, sixty-nine".