11621061356523 has 8 divisors (see below), whose sum is σ = 15668846773200. Its totient is φ = 7660325088768.

The previous prime is 11621061356447. The next prime is 11621061356549. The reversal of 11621061356523 is 32565316012611.

It is a happy number.

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

It is not a de Polignac number, because 11621061356523 - 2¹⁰ = 11621061355499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11621061355523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21762286918 + ... + 21762287451.

It is an arithmetic number, because the mean of its divisors is an integer number (1958605846650).

Almost surely, 2^{11621061356523} is an apocalyptic number.

11621061356523 is a deficient number, since it is larger than the sum of its proper divisors (4047785416677).

11621061356523 is an equidigital number, since it uses as much as digits as its factorization.

11621061356523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43524574461.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 11621061356523 in words is "eleven trillion, six hundred twenty-one billion, sixty-one million, three hundred fifty-six thousand, five hundred twenty-three".