226671135840 has 72 divisors (see below), whose sum is σ = 773515255968. Its totient is φ = 60445635840.

The previous prime is 226671135773. The next prime is 226671135841. The reversal of 226671135840 is 48531176622.

226671135840 is a `hidden beast` number, since 2 + 2 + 6 + 67 + 1 + 1 + 3 + 584 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226671135841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78703816 + ... + 78706695.

It is an arithmetic number, because the mean of its divisors is an integer number (10743267444).

Almost surely, 2^226671135840 is an apocalyptic number.

226671135840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226671135840 is an abundant number, since it is smaller than the sum of its proper divisors (546844120128).

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

226671135840 is a wasteful number, since it uses less digits than its factorization.

226671135840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157410532 (or 157410521 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 226671135840 in words is "two hundred twenty-six billion, six hundred seventy-one million, one hundred thirty-five thousand, eight hundred forty".