20126441557630 has 32 divisors (see below), whose sum is σ = 39021154761600. Its totient is φ = 7449493175712.

The previous prime is 20126441557601. The next prime is 20126441557643. The reversal of 20126441557630 is 3675514462102.

It is a super-2 number, since 2×20126441557630² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1231720200 + ... + 1231736539.

It is an arithmetic number, because the mean of its divisors is an integer number (1219411086300).

Almost surely, 2^{20126441557630} is an apocalyptic number.

20126441557630 is a deficient number, since it is larger than the sum of its proper divisors (18894713203970).

20126441557630 is a wasteful number, since it uses less digits than its factorization.

20126441557630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463456808.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 20126441557630 in words is "twenty trillion, one hundred twenty-six billion, four hundred forty-one million, five hundred fifty-seven thousand, six hundred thirty".