20297269756 has 12 divisors (see below), whose sum is σ = 35846096440. Its totient is φ = 10055527920.

The previous prime is 20297269723. The next prime is 20297269771. The reversal of 20297269756 is 65796279202.

It is a junction number, because it is equal to n+sod(n) for n = 20297269697 and 20297269706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23276250 + ... + 23277121.

Almost surely, 2^20297269756 is an apocalyptic number.

It is an amenable number.

20297269756 is a deficient number, since it is larger than the sum of its proper divisors (15548826684).

20297269756 is a wasteful number, since it uses less digits than its factorization.

20297269756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46553484 (or 46553482 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 20297269756 in words is "twenty billion, two hundred ninety-seven million, two hundred sixty-nine thousand, seven hundred fifty-six".