21314142105546 has 16 divisors (see below), whose sum is σ = 42658240857984. Its totient is φ = 7099721260704.

The previous prime is 21314142105541. The next prime is 21314142105547. The reversal of 21314142105546 is 64550124141312.

It is not an unprimeable number, because it can be changed into a prime (21314142105541) 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, 1248184371 + ... + 1248201446.

It is an arithmetic number, because the mean of its divisors is an integer number (2666140053624).

Almost surely, 2^{21314142105546} is an apocalyptic number.

21314142105546 is an abundant number, since it is smaller than the sum of its proper divisors (21344098752438).

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

21314142105546 is a wasteful number, since it uses less digits than its factorization.

21314142105546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496387245.

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 21314142105546 its reverse (64550124141312), we get a palindrome (85864266246858).

The spelling of 21314142105546 in words is "twenty-one trillion, three hundred fourteen billion, one hundred forty-two million, one hundred five thousand, five hundred forty-six".