11615222401 has 4 divisors (see below), whose sum is σ = 11619707904. Its totient is φ = 11610736900.

The previous prime is 11615222327. The next prime is 11615222407. The reversal of 11615222401 is 10422251611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11615222401 - 2⁹ = 11615221889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11615222407) 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, 2238865 + ... + 2244046.

It is an arithmetic number, because the mean of its divisors is an integer number (2904926976).

Almost surely, 2^11615222401 is an apocalyptic number.

It is an amenable number.

11615222401 is a deficient number, since it is larger than the sum of its proper divisors (4485503).

11615222401 is an equidigital number, since it uses as much as digits as its factorization.

11615222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485502.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 11615222401 in words is "eleven billion, six hundred fifteen million, two hundred twenty-two thousand, four hundred one".