11209162461 has 32 divisors (see below), whose sum is σ = 18003363840. Its totient is φ = 6060101184.

The previous prime is 11209162457. The next prime is 11209162519. The reversal of 11209162461 is 16426190211.

It is not a de Polignac number, because 11209162461 - 2² = 11209162457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11209162451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290256 + ... + 326598.

It is an arithmetic number, because the mean of its divisors is an integer number (562605120).

Almost surely, 2^11209162461 is an apocalyptic number.

It is an amenable number.

11209162461 is a deficient number, since it is larger than the sum of its proper divisors (6794201379).

11209162461 is a wasteful number, since it uses less digits than its factorization.

11209162461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37145.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 11209162461 in words is "eleven billion, two hundred nine million, one hundred sixty-two thousand, four hundred sixty-one".