20667292269 has 16 divisors (see below), whose sum is σ = 29964235392. Its totient is φ = 12594852288.

The previous prime is 20667292267. The next prime is 20667292277. The reversal of 20667292269 is 96229276602.

It is not a de Polignac number, because 20667292269 - 2¹ = 20667292267 is a prime.

It is a super-2 number, since 2×20667292269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20667292267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2568462 + ... + 2576495.

It is an arithmetic number, because the mean of its divisors is an integer number (1872764712).

Almost surely, 2^20667292269 is an apocalyptic number.

It is an amenable number.

20667292269 is a deficient number, since it is larger than the sum of its proper divisors (9296943123).

20667292269 is a wasteful number, since it uses less digits than its factorization.

20667292269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145076.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 20667292269 in words is "twenty billion, six hundred sixty-seven million, two hundred ninety-two thousand, two hundred sixty-nine".