21314151260065 has 8 divisors (see below), whose sum is σ = 25840661734440. Its totient is φ = 16875534193152.

The previous prime is 21314151260029. The next prime is 21314151260111. The reversal of 21314151260065 is 56006215141312.

It can be written as a sum of positive squares in 4 ways, for example, as 114867444241 + 21199283815824 = 338921^2 + 4604268^2 .

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 21314151260065 - 2⁷ = 21314151259937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21973351330 + ... + 21973352299.

It is an arithmetic number, because the mean of its divisors is an integer number (3230082716805).

Almost surely, 2^{21314151260065} is an apocalyptic number.

It is an amenable number.

21314151260065 is a deficient number, since it is larger than the sum of its proper divisors (4526510474375).

21314151260065 is an equidigital number, since it uses as much as digits as its factorization.

21314151260065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43946703731.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 21314151260065 in words is "twenty-one trillion, three hundred fourteen billion, one hundred fifty-one million, two hundred sixty thousand, sixty-five".