11642146645 has 4 divisors (see below), whose sum is σ = 13970575980. Its totient is φ = 9313717312.

The previous prime is 11642146631. The next prime is 11642146699. The reversal of 11642146645 is 54664124611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1748661489 + 9893485156 = 41817^2 + 99466^2 .

It is a cyclic number.

It is not a de Polignac number, because 11642146645 - 2⁵ = 11642146613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11642146598 and 11642146607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164214660 + ... + 1164214669.

It is an arithmetic number, because the mean of its divisors is an integer number (3492643995).

Almost surely, 2^11642146645 is an apocalyptic number.

It is an amenable number.

11642146645 is a deficient number, since it is larger than the sum of its proper divisors (2328429335).

11642146645 is an equidigital number, since it uses as much as digits as its factorization.

11642146645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328429334.

The product of its digits is 138240, while the sum is 40.

The spelling of 11642146645 in words is "eleven billion, six hundred forty-two million, one hundred forty-six thousand, six hundred forty-five".