1616474377717 has 4 divisors (see below), whose sum is σ = 1711561105836. Its totient is φ = 1521387649600.

The previous prime is 1616474377697. The next prime is 1616474377783. The reversal of 1616474377717 is 7177734746161.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1395023194321 + 221451183396 = 1181111^2 + 470586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616474377717 is a prime.

It is a super-2 number, since 2×1616474377717² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616474377117) 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 3 ways as a sum of consecutive naturals, for example, 47543364034 + ... + 47543364067.

It is an arithmetic number, because the mean of its divisors is an integer number (427890276459).

Almost surely, 2^{1616474377717} is an apocalyptic number.

1616474377717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1616474377717 is a deficient number, since it is larger than the sum of its proper divisors (95086728119).

1616474377717 is an equidigital number, since it uses as much as digits as its factorization.

1616474377717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95086728118.

The product of its digits is 29042496, while the sum is 61.

The spelling of 1616474377717 in words is "one trillion, six hundred sixteen billion, four hundred seventy-four million, three hundred seventy-seven thousand, seven hundred seventeen".