1616057788791 has 4 divisors (see below), whose sum is σ = 2154743718392. Its totient is φ = 1077371859192.

The previous prime is 1616057788769. The next prime is 1616057788801. The reversal of 1616057788791 is 1978877506161.

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

It is not a de Polignac number, because 1616057788791 - 2⁵ = 1616057788759 is a prime.

It is a super-2 number, since 2×1616057788791² (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 (1616057788091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269342964796 + ... + 269342964801.

It is an arithmetic number, because the mean of its divisors is an integer number (538685929598).

Almost surely, 2^{1616057788791} is an apocalyptic number.

1616057788791 is a deficient number, since it is larger than the sum of its proper divisors (538685929601).

1616057788791 is an equidigital number, since it uses as much as digits as its factorization.

1616057788791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538685929600.

The product of its (nonzero) digits is 35562240, while the sum is 66.

The spelling of 1616057788791 in words is "one trillion, six hundred sixteen billion, fifty-seven million, seven hundred eighty-eight thousand, seven hundred ninety-one".