105655771623 has 32 divisors (see below), whose sum is σ = 148657614336. Its totient is φ = 66615994368.

The previous prime is 105655771619. The next prime is 105655771631. The reversal of 105655771623 is 326177556501.

It is not a de Polignac number, because 105655771623 - 2² = 105655771619 is a prime.

It is a super-2 number, since 2×105655771623² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105655771603) 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, 7509211 + ... + 7523267.

It is an arithmetic number, because the mean of its divisors is an integer number (4645550448).

Almost surely, 2^105655771623 is an apocalyptic number.

105655771623 is a deficient number, since it is larger than the sum of its proper divisors (43001842713).

105655771623 is a wasteful number, since it uses less digits than its factorization.

105655771623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15303.

The product of its (nonzero) digits is 1323000, while the sum is 48.

The spelling of 105655771623 in words is "one hundred five billion, six hundred fifty-five million, seven hundred seventy-one thousand, six hundred twenty-three".