21045552001514 has 16 divisors (see below), whose sum is σ = 31655121159168. Its totient is φ = 10493846354832.

The previous prime is 21045552001511. The next prime is 21045552001519. The reversal of 21045552001514 is 41510025554012.

It is not an unprimeable number, because it can be changed into a prime (21045552001511) 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, 31589792 + ... + 32249124.

It is an arithmetic number, because the mean of its divisors is an integer number (1978445072448).

Almost surely, 2^{21045552001514} is an apocalyptic number.

21045552001514 is a deficient number, since it is larger than the sum of its proper divisors (10609569157654).

21045552001514 is a wasteful number, since it uses less digits than its factorization.

21045552001514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703189.

The product of its (nonzero) digits is 40000, while the sum is 35.

Adding to 21045552001514 its reverse (41510025554012), we get a palindrome (62555577555526).

The spelling of 21045552001514 in words is "twenty-one trillion, forty-five billion, five hundred fifty-two million, one thousand, five hundred fourteen".