11621741155 has 24 divisors (see below), whose sum is σ = 14716374192. Its totient is φ = 8807250816.

The previous prime is 11621741149. The next prime is 11621741177. The reversal of 11621741155 is 55114712611.

It is not a de Polignac number, because 11621741155 - 2²³ = 11613352547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11621741155.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196792 + ... + 248938.

It is an arithmetic number, because the mean of its divisors is an integer number (613182258).

Almost surely, 2^11621741155 is an apocalyptic number.

11621741155 is a deficient number, since it is larger than the sum of its proper divisors (3094633037).

11621741155 is an equidigital number, since it uses as much as digits as its factorization.

11621741155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52263 (or 52234 counting only the distinct ones).

The product of its digits is 8400, while the sum is 34.

The spelling of 11621741155 in words is "eleven billion, six hundred twenty-one million, seven hundred forty-one thousand, one hundred fifty-five".