6161355661623 has 16 divisors (see below), whose sum is σ = 8328437856480. Its totient is φ = 4050932235264.

The previous prime is 6161355661577. The next prime is 6161355661627. The reversal of 6161355661623 is 3261665531616.

It is not a de Polignac number, because 6161355661623 - 2²² = 6161351467319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161355661627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127833 + ... + 3687101.

It is an arithmetic number, because the mean of its divisors is an integer number (520527366030).

Almost surely, 2^{6161355661623} is an apocalyptic number.

6161355661623 is a deficient number, since it is larger than the sum of its proper divisors (2167082194857).

6161355661623 is a wasteful number, since it uses less digits than its factorization.

6161355661623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570338.

The product of its digits is 3499200, while the sum is 51.

The spelling of 6161355661623 in words is "six trillion, one hundred sixty-one billion, three hundred fifty-five million, six hundred sixty-one thousand, six hundred twenty-three".