20465512126 has 8 divisors (see below), whose sum is σ = 30699895464. Its totient is φ = 10232213640.

The previous prime is 20465512121. The next prime is 20465512129. The reversal of 20465512126 is 62121556402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20465512091 and 20465512100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20465512121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222285 + ... + 300568.

It is an arithmetic number, because the mean of its divisors is an integer number (3837486933).

Almost surely, 2^20465512126 is an apocalyptic number.

20465512126 is a deficient number, since it is larger than the sum of its proper divisors (10234383338).

20465512126 is a wasteful number, since it uses less digits than its factorization.

20465512126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542426.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20465512126 in words is "twenty billion, four hundred sixty-five million, five hundred twelve thousand, one hundred twenty-six".