20354461636552 has 32 divisors (see below), whose sum is σ = 38186784266400. Its totient is φ = 10171319958144.

The previous prime is 20354461636451. The next prime is 20354461636571. The reversal of 20354461636552 is 25563616445302.

It is a self number, because there is not a number n which added to its sum of digits gives 20354461636552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250374103 + ... + 250455385.

It is an arithmetic number, because the mean of its divisors is an integer number (1193337008325).

Almost surely, 2^{20354461636552} is an apocalyptic number.

It is an amenable number.

20354461636552 is a deficient number, since it is larger than the sum of its proper divisors (17832322629848).

20354461636552 is a wasteful number, since it uses less digits than its factorization.

20354461636552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99085 (or 99081 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 52.

The spelling of 20354461636552 in words is "twenty trillion, three hundred fifty-four billion, four hundred sixty-one million, six hundred thirty-six thousand, five hundred fifty-two".