11621531263055 has 16 divisors (see below), whose sum is σ = 16008311923200. Its totient is φ = 7933944056352.

The previous prime is 11621531263019. The next prime is 11621531263081. The reversal of 11621531263055 is 55036213512611.

It is a cyclic number.

It is not a de Polignac number, because 11621531263055 - 2¹⁰ = 11621531262031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 731365955 + ... + 731381844.

It is an arithmetic number, because the mean of its divisors is an integer number (1000519495200).

Almost surely, 2^{11621531263055} is an apocalyptic number.

11621531263055 is a deficient number, since it is larger than the sum of its proper divisors (4386780660145).

11621531263055 is a wasteful number, since it uses less digits than its factorization.

11621531263055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462748038.

The product of its (nonzero) digits is 162000, while the sum is 41.

Adding to 11621531263055 its reverse (55036213512611), we get a palindrome (66657744775666).

The spelling of 11621531263055 in words is "eleven trillion, six hundred twenty-one billion, five hundred thirty-one million, two hundred sixty-three thousand, fifty-five".