21141315416 has 32 divisors (see below), whose sum is σ = 42696186960. Its totient is φ = 9755932032.

The previous prime is 21141315331. The next prime is 21141315439. The reversal of 21141315416 is 61451314112.

It is a congruent number.

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, 824891 + ... + 850133.

Almost surely, 2^21141315416 is an apocalyptic number.

21141315416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21141315416 is an abundant number, since it is smaller than the sum of its proper divisors (21554871544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21141315416 is a wasteful number, since it uses less digits than its factorization.

21141315416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33315 (or 33311 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

Adding to 21141315416 its reverse (61451314112), we get a palindrome (82592629528).

The spelling of 21141315416 in words is "twenty-one billion, one hundred forty-one million, three hundred fifteen thousand, four hundred sixteen".