228820200645 has 64 divisors (see below), whose sum is σ = 407065190400. Its totient is φ = 109282763520.

The previous prime is 228820200589. The next prime is 228820200673. The reversal of 228820200645 is 546002028822.

It is not a de Polignac number, because 228820200645 - 2⁷ = 228820200517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78751 + ... + 681059.

It is an arithmetic number, because the mean of its divisors is an integer number (6360393600).

Almost surely, 2^228820200645 is an apocalyptic number.

It is an amenable number.

228820200645 is a deficient number, since it is larger than the sum of its proper divisors (178244989755).

228820200645 is a wasteful number, since it uses less digits than its factorization.

228820200645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602410.

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 228820200645 in words is "two hundred twenty-eight billion, eight hundred twenty million, two hundred thousand, six hundred forty-five".