16355374747805 has 8 divisors (see below), whose sum is σ = 19948194774744. Its totient is φ = 12869803080000.

The previous prime is 16355374747763. The next prime is 16355374747867. The reversal of 16355374747805 is 50874747355361.

It can be written as a sum of positive squares in 4 ways, for example, as 951586593049 + 15403788154756 = 975493^2 + 3924766^2 .

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

It is not a de Polignac number, because 16355374747805 - 2³² = 16351079780509 is a prime.

It is a super-2 number, since 2×16355374747805² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26812089446 + ... + 26812090055.

It is an arithmetic number, because the mean of its divisors is an integer number (2493524346843).

Almost surely, 2^{16355374747805} is an apocalyptic number.

It is an amenable number.

16355374747805 is a deficient number, since it is larger than the sum of its proper divisors (3592820026939).

16355374747805 is an equidigital number, since it uses as much as digits as its factorization.

16355374747805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53624179567.

The product of its (nonzero) digits is 296352000, while the sum is 65.

The spelling of 16355374747805 in words is "sixteen trillion, three hundred fifty-five billion, three hundred seventy-four million, seven hundred forty-seven thousand, eight hundred five".