20520460630442 has 32 divisors (see below), whose sum is σ = 32988913846272. Its totient is φ = 9548350568064.

The previous prime is 20520460630393. The next prime is 20520460630451. The reversal of 20520460630442 is 24403606402502.

It is a junction number, because it is equal to n+sod(n) for n = 20520460630396 and 20520460630405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30839543 + ... + 31497909.

It is an arithmetic number, because the mean of its divisors is an integer number (1030903557696).

Almost surely, 2^{20520460630442} is an apocalyptic number.

20520460630442 is a deficient number, since it is larger than the sum of its proper divisors (12468453215830).

20520460630442 is a wasteful number, since it uses less digits than its factorization.

20520460630442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676742.

The product of its (nonzero) digits is 276480, while the sum is 38.

The spelling of 20520460630442 in words is "twenty trillion, five hundred twenty billion, four hundred sixty million, six hundred thirty thousand, four hundred forty-two".