21464166003 has 8 divisors (see below), whose sum is σ = 32707300608. Its totient is φ = 12265237704.

The previous prime is 21464165971. The next prime is 21464166019. The reversal of 21464166003 is 30066146412.

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

It is not a de Polignac number, because 21464166003 - 2⁵ = 21464165971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21464166023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 511051551 + ... + 511051592.

It is an arithmetic number, because the mean of its divisors is an integer number (4088412576).

Almost surely, 2^21464166003 is an apocalyptic number.

21464166003 is a deficient number, since it is larger than the sum of its proper divisors (11243134605).

21464166003 is a wasteful number, since it uses less digits than its factorization.

21464166003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022103153.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 21464166003 in words is "twenty-one billion, four hundred sixty-four million, one hundred sixty-six thousand, three".