21162651131014 has 16 divisors (see below), whose sum is σ = 32248480446000. Its totient is φ = 10413458757504.

The previous prime is 21162651131009. The next prime is 21162651131033. The reversal of 21162651131014 is 41013115626112.

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, 75135999 + ... + 75417130.

It is an arithmetic number, because the mean of its divisors is an integer number (2015530027875).

Almost surely, 2^{21162651131014} is an apocalyptic number.

21162651131014 is a deficient number, since it is larger than the sum of its proper divisors (11085829314986).

21162651131014 is a wasteful number, since it uses less digits than its factorization.

21162651131014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150554247.

The product of its (nonzero) digits is 8640, while the sum is 34.

Adding to 21162651131014 its reverse (41013115626112), we get a palindrome (62175766757126).

The spelling of 21162651131014 in words is "twenty-one trillion, one hundred sixty-two billion, six hundred fifty-one million, one hundred thirty-one thousand, fourteen".