11640890846 has 16 divisors (see below), whose sum is σ = 18813438000. Its totient is φ = 5370169728.

The previous prime is 11640890809. The next prime is 11640890867. The reversal of 11640890846 is 64809804611.

It is a self number, because there is not a number n which added to its sum of digits gives 11640890846.

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, 49796 + ... + 160503.

It is an arithmetic number, because the mean of its divisors is an integer number (1175839875).

Almost surely, 2^11640890846 is an apocalyptic number.

11640890846 is a deficient number, since it is larger than the sum of its proper divisors (7172547154).

11640890846 is a wasteful number, since it uses less digits than its factorization.

11640890846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212443.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 11640890846 in words is "eleven billion, six hundred forty million, eight hundred ninety thousand, eight hundred forty-six".