1616364366645 has 32 divisors (see below), whose sum is σ = 2957477234688. Its totient is φ = 738449540928.

The previous prime is 1616364366641. The next prime is 1616364366647. The reversal of 1616364366645 is 5466634636161.

It is a happy number.

It is not a de Polignac number, because 1616364366645 - 2² = 1616364366641 is a prime.

It is a super-2 number, since 2×1616364366645² (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 (1616364366641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4620919 + ... + 4958388.

It is an arithmetic number, because the mean of its divisors is an integer number (92421163584).

Almost surely, 2^{1616364366645} is an apocalyptic number.

1616364366645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1616364366645 is a deficient number, since it is larger than the sum of its proper divisors (1341112868043).

1616364366645 is a wasteful number, since it uses less digits than its factorization.

1616364366645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9580929.

The product of its digits is 33592320, while the sum is 57.

The spelling of 1616364366645 in words is "one trillion, six hundred sixteen billion, three hundred sixty-four million, three hundred sixty-six thousand, six hundred forty-five".