21614400102 has 16 divisors (see below), whose sum is σ = 43233005232. Its totient is φ = 7204099200.

The previous prime is 21614400077. The next prime is 21614400107. The reversal of 21614400102 is 20100441612.

It is a happy number.

It is a super-2 number, since 2×21614400102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21614400107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106303 + ... + 233514.

It is an arithmetic number, because the mean of its divisors is an integer number (2702062827).

Almost surely, 2^21614400102 is an apocalyptic number.

21614400102 is an abundant number, since it is smaller than the sum of its proper divisors (21618605130).

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

21614400102 is a wasteful number, since it uses less digits than its factorization.

21614400102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350423.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21614400102 its reverse (20100441612), we get a palindrome (41714841714).

The spelling of 21614400102 in words is "twenty-one billion, six hundred fourteen million, four hundred thousand, one hundred two".