1616537226318 has 32 divisors (see below), whose sum is σ = 3745557885696. Its totient is φ = 455540822208.

The previous prime is 1616537226263. The next prime is 1616537226319. The reversal of 1616537226318 is 8136227356161.

It is a super-2 number, since 2×1616537226318² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616537226319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263620096 + ... + 263626227.

It is an arithmetic number, because the mean of its divisors is an integer number (117048683928).

Almost surely, 2^{1616537226318} is an apocalyptic number.

1616537226318 is an abundant number, since it is smaller than the sum of its proper divisors (2129020659378).

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

1616537226318 is a wasteful number, since it uses less digits than its factorization.

1616537226318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527246408.

The product of its digits is 2177280, while the sum is 51.

The spelling of 1616537226318 in words is "one trillion, six hundred sixteen billion, five hundred thirty-seven million, two hundred twenty-six thousand, three hundred eighteen".