20695852991769 has 16 divisors (see below), whose sum is σ = 27625323176640. Its totient is φ = 13781817584640.

The previous prime is 20695852991729. The next prime is 20695852991797. The reversal of 20695852991769 is 96719925859602.

It is not a de Polignac number, because 20695852991769 - 2²⁷ = 20695718774041 is a prime.

It is a super-2 number, since 2×20695852991769² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20695852991694 and 20695852991703.

It is not an unprimeable number, because it can be changed into a prime (20695852991729) 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, 8673214 + ... + 10798904.

It is an arithmetic number, because the mean of its divisors is an integer number (1726582698540).

Almost surely, 2^{20695852991769} is an apocalyptic number.

It is an amenable number.

20695852991769 is a deficient number, since it is larger than the sum of its proper divisors (6929470184871).

20695852991769 is a wasteful number, since it uses less digits than its factorization.

20695852991769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129320.

The product of its (nonzero) digits is 1322697600, while the sum is 78.

The spelling of 20695852991769 in words is "twenty trillion, six hundred ninety-five billion, eight hundred fifty-two million, nine hundred ninety-one thousand, seven hundred sixty-nine".