21455001045411 has 8 divisors (see below), whose sum is σ = 28622676275904. Its totient is φ = 14295329922600.

The previous prime is 21455001045377. The next prime is 21455001045451. The reversal of 21455001045411 is 11454010055412.

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

It is not a de Polignac number, because 21455001045411 - 2¹⁰ = 21455001044387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21455001045451) 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, 2001020665 + ... + 2001031386.

It is an arithmetic number, because the mean of its divisors is an integer number (3577834534488).

Almost surely, 2^{21455001045411} is an apocalyptic number.

21455001045411 is a deficient number, since it is larger than the sum of its proper divisors (7167675230493).

21455001045411 is a wasteful number, since it uses less digits than its factorization.

21455001045411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002053841.

The product of its (nonzero) digits is 16000, while the sum is 33.

The spelling of 21455001045411 in words is "twenty-one trillion, four hundred fifty-five billion, one million, forty-five thousand, four hundred eleven".