226578741520 has 80 divisors (see below), whose sum is σ = 528811028928. Its totient is φ = 90285212160.

The previous prime is 226578741503. The next prime is 226578741593. The reversal of 226578741520 is 25147875622.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×226578741520² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43345147 + ... + 43350373.

Almost surely, 2^226578741520 is an apocalyptic number.

226578741520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226578741520 is an abundant number, since it is smaller than the sum of its proper divisors (302232287408).

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

226578741520 is a wasteful number, since it uses less digits than its factorization.

226578741520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7208 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 226578741520 in words is "two hundred twenty-six billion, five hundred seventy-eight million, seven hundred forty-one thousand, five hundred twenty".