16237222721406 has 24 divisors (see below), whose sum is σ = 37250099185104. Its totient is φ = 5094030657600.

The previous prime is 16237222721383. The next prime is 16237222721407. The reversal of 16237222721406 is 60412722273261.

16237222721406 is a `hidden beast` number, since 1 + 6 + 2 + 372 + 2 + 272 + 1 + 4 + 0 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16237222721407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26531409370 + ... + 26531409981.

It is an arithmetic number, because the mean of its divisors is an integer number (1552087466046).

Almost surely, 2^{16237222721406} is an apocalyptic number.

16237222721406 is an abundant number, since it is smaller than the sum of its proper divisors (21012876463698).

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

16237222721406 is a wasteful number, since it uses less digits than its factorization.

16237222721406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53062819376 (or 53062819373 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

Adding to 16237222721406 its reverse (60412722273261), we get a palindrome (76649944994667).

The spelling of 16237222721406 in words is "sixteen trillion, two hundred thirty-seven billion, two hundred twenty-two million, seven hundred twenty-one thousand, four hundred six".