20351644661102 has 8 divisors (see below), whose sum is σ = 30527724674496. Its totient is φ = 10175736436272.

The previous prime is 20351644661093. The next prime is 20351644661111. The reversal of 20351644661102 is 20116644615302.

It is an interprime number because it is at equal distance from previous prime (20351644661093) and next prime (20351644661111).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20351644661102.

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 3 ways as a sum of consecutive naturals, for example, 42650558 + ... + 43125089.

It is an arithmetic number, because the mean of its divisors is an integer number (3815965584312).

Almost surely, 2^{20351644661102} is an apocalyptic number.

20351644661102 is a deficient number, since it is larger than the sum of its proper divisors (10176080013394).

20351644661102 is a wasteful number, since it uses less digits than its factorization.

20351644661102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85894282.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20351644661102 in words is "twenty trillion, three hundred fifty-one billion, six hundred forty-four million, six hundred sixty-one thousand, one hundred two".