21160350661146 has 8 divisors (see below), whose sum is σ = 42320701322304. Its totient is φ = 7053450220380.

The previous prime is 21160350661129. The next prime is 21160350661193. The reversal of 21160350661146 is 64116605306112.

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

21160350661146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21160350661098 and 21160350661107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763362555090 + ... + 1763362555101.

It is an arithmetic number, because the mean of its divisors is an integer number (5290087665288).

Almost surely, 2^{21160350661146} is an apocalyptic number.

21160350661146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21160350661146 is a wasteful number, since it uses less digits than its factorization.

21160350661146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526725110196.

The product of its (nonzero) digits is 155520, while the sum is 42.

Adding to 21160350661146 its reverse (64116605306112), we get a palindrome (85276955967258).

The spelling of 21160350661146 in words is "twenty-one trillion, one hundred sixty billion, three hundred fifty million, six hundred sixty-one thousand, one hundred forty-six".