16211331651622 has 4 divisors (see below), whose sum is σ = 24316997477436. Its totient is φ = 8105665825810.

The previous prime is 16211331651617. The next prime is 16211331651629. The reversal of 16211331651622 is 22615613311261.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16211331651629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052832912904 + ... + 4052832912907.

It is an arithmetic number, because the mean of its divisors is an integer number (6079249369359).

Almost surely, 2^{16211331651622} is an apocalyptic number.

16211331651622 is a deficient number, since it is larger than the sum of its proper divisors (8105665825814).

16211331651622 is an equidigital number, since it uses as much as digits as its factorization.

16211331651622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8105665825813.

The product of its digits is 77760, while the sum is 40.

Adding to 16211331651622 its reverse (22615613311261), we get a palindrome (38826944962883).

The spelling of 16211331651622 in words is "sixteen trillion, two hundred eleven billion, three hundred thirty-one million, six hundred fifty-one thousand, six hundred twenty-two".