2155430412105 has 8 divisors (see below), whose sum is σ = 3448688659392. Its totient is φ = 1149562886448.

The previous prime is 2155430412061. The next prime is 2155430412151. The reversal of 2155430412105 is 5012140345512.

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

It is not a de Polignac number, because 2155430412105 - 2⁶ = 2155430412041 is a prime.

It is a super-2 number, since 2×2155430412105² (a number of 25 digits) contains 22 as substring.

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, 71847680389 + ... + 71847680418.

It is an arithmetic number, because the mean of its divisors is an integer number (431086082424).

Almost surely, 2^{2155430412105} is an apocalyptic number.

It is an amenable number.

2155430412105 is a deficient number, since it is larger than the sum of its proper divisors (1293258247287).

2155430412105 is a wasteful number, since it uses less digits than its factorization.

2155430412105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143695360815.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 2155430412105 its reverse (5012140345512), we get a palindrome (7167570757617).

The spelling of 2155430412105 in words is "two trillion, one hundred fifty-five billion, four hundred thirty million, four hundred twelve thousand, one hundred five".