20215630126 has 32 divisors (see below), whose sum is σ = 31806966240. Its totient is φ = 9623771136.

The previous prime is 20215630117. The next prime is 20215630129. The reversal of 20215630126 is 62103651202.

It is a junction number, because it is equal to n+sod(n) for n = 20215630094 and 20215630103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20215630129) 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, 1585810 + ... + 1598506.

It is an arithmetic number, because the mean of its divisors is an integer number (993967695).

Almost surely, 2^20215630126 is an apocalyptic number.

20215630126 is a deficient number, since it is larger than the sum of its proper divisors (11591336114).

20215630126 is a wasteful number, since it uses less digits than its factorization.

20215630126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13108.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 20215630126 in words is "twenty billion, two hundred fifteen million, six hundred thirty thousand, one hundred twenty-six".