21514413514555 has 8 divisors (see below), whose sum is σ = 27803242080432. Its totient is φ = 15887566903008.

The previous prime is 21514413514511. The next prime is 21514413514571. The reversal of 21514413514555 is 55541531441512.

It is a happy number.

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 21514413514555 - 2⁷ = 21514413514427 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, 165495488509 + ... + 165495488638.

It is an arithmetic number, because the mean of its divisors is an integer number (3475405260054).

Almost surely, 2^{21514413514555} is an apocalyptic number.

21514413514555 is a deficient number, since it is larger than the sum of its proper divisors (6288828565877).

21514413514555 is a wasteful number, since it uses less digits than its factorization.

21514413514555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330990977165.

The product of its digits is 1200000, while the sum is 46.

The spelling of 21514413514555 in words is "twenty-one trillion, five hundred fourteen billion, four hundred thirteen million, five hundred fourteen thousand, five hundred fifty-five".