226156640004 has 120 divisors (see below), whose sum is σ = 611135571200. Its totient is φ = 72852644160.

The previous prime is 226156639927. The next prime is 226156640009. The reversal of 226156640004 is 400046651622.

226156640004 is a `hidden beast` number, since 2 + 2 + 6 + 1 + 5 + 6 + 640 + 0 + 0 + 4 = 666.

It is a super-2 number, since 2×226156640004² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (226156640009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7407282 + ... + 7437750.

Almost surely, 2^226156640004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226156640004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305567785600).

226156640004 is an abundant number, since it is smaller than the sum of its proper divisors (384978931196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226156640004 is a wasteful number, since it uses less digits than its factorization.

226156640004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31255 (or 31244 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 226156640004 in words is "two hundred twenty-six billion, one hundred fifty-six million, six hundred forty thousand, four".