21364171446151 has 8 divisors (see below), whose sum is σ = 21454453483344. Its totient is φ = 21273930408000.

The previous prime is 21364171446097. The next prime is 21364171446229. The reversal of 21364171446151 is 15164417146312.

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

It is a cyclic number.

It is not a de Polignac number, because 21364171446151 - 2¹⁵ = 21364171413383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364171449151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9205156 + ... + 11289961.

It is an arithmetic number, because the mean of its divisors is an integer number (2681806685418).

Almost surely, 2^{21364171446151} is an apocalyptic number.

21364171446151 is a deficient number, since it is larger than the sum of its proper divisors (90282037193).

21364171446151 is a wasteful number, since it uses less digits than its factorization.

21364171446151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20499521.

The product of its digits is 483840, while the sum is 46.

The spelling of 21364171446151 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred seventy-one million, four hundred forty-six thousand, one hundred fifty-one".