1616442135645 has 8 divisors (see below), whose sum is σ = 2586307417056. Its totient is φ = 862102472336.

The previous prime is 1616442135641. The next prime is 1616442135667. The reversal of 1616442135645 is 5465312446161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1616442135645 - 2² = 1616442135641 is a prime.

It is a super-2 number, since 2×1616442135645² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1616442135594 and 1616442135603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616442135641) 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 7 ways as a sum of consecutive naturals, for example, 53881404507 + ... + 53881404536.

It is an arithmetic number, because the mean of its divisors is an integer number (323288427132).

Almost surely, 2^{1616442135645} is an apocalyptic number.

1616442135645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1616442135645 is a deficient number, since it is larger than the sum of its proper divisors (969865281411).

1616442135645 is a wasteful number, since it uses less digits than its factorization.

1616442135645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107762809051.

The product of its digits is 2073600, while the sum is 48.

The spelling of 1616442135645 in words is "one trillion, six hundred sixteen billion, four hundred forty-two million, one hundred thirty-five thousand, six hundred forty-five".