20352661061675 has 6 divisors (see below), whose sum is σ = 25237299716508. Its totient is φ = 16282128849320.

The previous prime is 20352661061597. The next prime is 20352661061717. The reversal of 20352661061675 is 57616016625302.

It is a happy number.

It is not a de Polignac number, because 20352661061675 - 2¹⁶ = 20352660996139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 407053221209 + ... + 407053221258.

It is an arithmetic number, because the mean of its divisors is an integer number (4206216619418).

Almost surely, 2^{20352661061675} is an apocalyptic number.

20352661061675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20352661061675 is a deficient number, since it is larger than the sum of its proper divisors (4884638654833).

20352661061675 is an equidigital number, since it uses as much as digits as its factorization.

20352661061675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814106442477 (or 814106442472 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

Adding to 20352661061675 its reverse (57616016625302), we get a palindrome (77968677686977).

The spelling of 20352661061675 in words is "twenty trillion, three hundred fifty-two billion, six hundred sixty-one million, sixty-one thousand, six hundred seventy-five".