6161311505643 has 32 divisors (see below), whose sum is σ = 10112896008192. Its totient is φ = 3259038736800.

The previous prime is 6161311505641. The next prime is 6161311505659. The reversal of 6161311505643 is 3465051131616.

It is not a de Polignac number, because 6161311505643 - 2¹ = 6161311505641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6161311505595 and 6161311505604.

It is not an unprimeable number, because it can be changed into a prime (6161311505641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205732423 + ... + 205762368.

It is an arithmetic number, because the mean of its divisors is an integer number (316028000256).

Almost surely, 2^{6161311505643} is an apocalyptic number.

6161311505643 is a deficient number, since it is larger than the sum of its proper divisors (3951584502549).

6161311505643 is a wasteful number, since it uses less digits than its factorization.

6161311505643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411494855.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 6161311505643 in words is "six trillion, one hundred sixty-one billion, three hundred eleven million, five hundred five thousand, six hundred forty-three".