11622611512555 has 4 divisors (see below), whose sum is σ = 13947133815072. Its totient is φ = 9298089210040.

The previous prime is 11622611512537. The next prime is 11622611512559. The reversal of 11622611512555 is 55521511622611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11622611512555 - 2³¹ = 11620464028907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11622611512559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162261151251 + ... + 1162261151260.

It is an arithmetic number, because the mean of its divisors is an integer number (3486783453768).

Almost surely, 2^{11622611512555} is an apocalyptic number.

11622611512555 is a deficient number, since it is larger than the sum of its proper divisors (2324522302517).

11622611512555 is an equidigital number, since it uses as much as digits as its factorization.

11622611512555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324522302516.

The product of its digits is 180000, while the sum is 43.

The spelling of 11622611512555 in words is "eleven trillion, six hundred twenty-two billion, six hundred eleven million, five hundred twelve thousand, five hundred fifty-five".