21550233302414 has 32 divisors (see below), whose sum is σ = 32482986256512. Its totient is φ = 10722678660000.

The previous prime is 21550233302407. The next prime is 21550233302431. The reversal of 21550233302414 is 41420333205512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1616543729 + ... + 1616557059.

It is an arithmetic number, because the mean of its divisors is an integer number (1015093320516).

Almost surely, 2^{21550233302414} is an apocalyptic number.

21550233302414 is a deficient number, since it is larger than the sum of its proper divisors (10932752954098).

21550233302414 is a wasteful number, since it uses less digits than its factorization.

21550233302414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17072.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 21550233302414 its reverse (41420333205512), we get a palindrome (62970566507926).

The spelling of 21550233302414 in words is "twenty-one trillion, five hundred fifty billion, two hundred thirty-three million, three hundred two thousand, four hundred fourteen".