20352112615406 has 32 divisors (see below), whose sum is σ = 35909594632800. Its totient is φ = 8528792417280.

The previous prime is 20352112615319. The next prime is 20352112615409. The reversal of 20352112615406 is 60451621125302.

It is a self number, because there is not a number n which added to its sum of digits gives 20352112615406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352112615409) by changing a digit.

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, 43749611 + ... + 44212358.

It is an arithmetic number, because the mean of its divisors is an integer number (1122174832275).

Almost surely, 2^{20352112615406} is an apocalyptic number.

20352112615406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20352112615406 is a deficient number, since it is larger than the sum of its proper divisors (15557482017394).

20352112615406 is a wasteful number, since it uses less digits than its factorization.

20352112615406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87962804.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 20352112615406 in words is "twenty trillion, three hundred fifty-two billion, one hundred twelve million, six hundred fifteen thousand, four hundred six".