20069697052 has 12 divisors (see below), whose sum is σ = 36649012176.
Its totient is φ = 9598550720.
The previous prime is 20069697031. The next prime is 20069697077. The reversal of 20069697052 is 25079696002.
It is a Harshad number since it is a multiple of its sum of digits (46).
It is a junction number, because it is equal to n+sod(n) for n = 20069696993 and 20069697011.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109074349 + ... + 109074532.
It is an arithmetic number, because the mean of its divisors is an integer number (3054084348).
Almost surely, 220069697052 is an apocalyptic number.
It is an amenable number.
20069697052 is a deficient number, since it is larger than the sum of its proper divisors (16579315124).
20069697052 is a wasteful number, since it uses less digits than its factorization.
20069697052 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 218148908 (or 218148906 counting only the distinct ones).
The product of its (nonzero) digits is 408240, while the sum is 46.
The spelling of 20069697052 in words is "twenty billion, sixty-nine million, six hundred ninety-seven thousand, fifty-two".