11920147565 has 8 divisors (see below), whose sum is σ = 14358567168. Its totient is φ = 9499858000.

The previous prime is 11920147507. The next prime is 11920147609. The reversal of 11920147565 is 56574102911.

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 11920147565 - 2²² = 11915953261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4531061 + ... + 4533690.

It is an arithmetic number, because the mean of its divisors is an integer number (1794820896).

Almost surely, 2^11920147565 is an apocalyptic number.

It is an amenable number.

11920147565 is a deficient number, since it is larger than the sum of its proper divisors (2438419603).

11920147565 is an equidigital number, since it uses as much as digits as its factorization.

11920147565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9065019.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 11920147565 in words is "eleven billion, nine hundred twenty million, one hundred forty-seven thousand, five hundred sixty-five".