11621361555151 has 4 divisors (see below), whose sum is σ = 11622358509552. Its totient is φ = 11620364600752.

The previous prime is 11621361555143. The next prime is 11621361555163. The reversal of 11621361555151 is 15155516312611.

11621361555151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11621361555151 - 2³ = 11621361555143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11621361555098 and 11621361555107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621361555851) 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, 498459715 + ... + 498483028.

It is an arithmetic number, because the mean of its divisors is an integer number (2905589627388).

Almost surely, 2^{11621361555151} is an apocalyptic number.

11621361555151 is a deficient number, since it is larger than the sum of its proper divisors (996954401).

11621361555151 is an equidigital number, since it uses as much as digits as its factorization.

11621361555151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996954400.

The product of its digits is 135000, while the sum is 43.

Adding to 11621361555151 its reverse (15155516312611), we get a palindrome (26776877867762).

The spelling of 11621361555151 in words is "eleven trillion, six hundred twenty-one billion, three hundred sixty-one million, five hundred fifty-five thousand, one hundred fifty-one".