11620078541 has 4 divisors (see below), whose sum is σ = 11620408800. Its totient is φ = 11619748284.

The previous prime is 11620078517. The next prime is 11620078553. The reversal of 11620078541 is 14587002611.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14587002611 = 71 ⋅205450741.

It is a cyclic number.

It is not a de Polignac number, because 11620078541 - 2²² = 11615884237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11620008541) 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, 105071 + ... + 185148.

It is an arithmetic number, because the mean of its divisors is an integer number (2905102200).

Almost surely, 2^11620078541 is an apocalyptic number.

It is an amenable number.

11620078541 is a deficient number, since it is larger than the sum of its proper divisors (330259).

11620078541 is an equidigital number, since it uses as much as digits as its factorization.

11620078541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330258.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 11620078541 in words is "eleven billion, six hundred twenty million, seventy-eight thousand, five hundred forty-one".