21326440146115 has 16 divisors (see below), whose sum is σ = 27560671040448. Its totient is φ = 15748556720256.

The previous prime is 21326440146101. The next prime is 21326440146127. The reversal of 21326440146115 is 51164104462312.

It is a cyclic number.

It is not a de Polignac number, because 21326440146115 - 2⁷ = 21326440145987 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3210594 + ... + 7277416.

It is an arithmetic number, because the mean of its divisors is an integer number (1722541940028).

Almost surely, 2^{21326440146115} is an apocalyptic number.

21326440146115 is a deficient number, since it is larger than the sum of its proper divisors (6234230894333).

21326440146115 is a wasteful number, since it uses less digits than its factorization.

21326440146115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147518.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 21326440146115 in words is "twenty-one trillion, three hundred twenty-six billion, four hundred forty million, one hundred forty-six thousand, one hundred fifteen".