223445777900 has 36 divisors (see below), whose sum is σ = 510397202280. Its totient is φ = 84674188800.

The previous prime is 223445777873. The next prime is 223445777903. The reversal of 223445777900 is 9777544322.

It is a happy number.

It is a super-2 number, since 2×223445777900² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (223445777903) 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, 58799621 + ... + 58803420.

Almost surely, 2^223445777900 is an apocalyptic number.

223445777900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223445777900 is an abundant number, since it is smaller than the sum of its proper divisors (286951424380).

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

223445777900 is a wasteful number, since it uses less digits than its factorization.

223445777900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117603074 (or 117603067 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 223445777900 in words is "two hundred twenty-three billion, four hundred forty-five million, seven hundred seventy-seven thousand, nine hundred".