228377325560172 has 24 divisors (see below), whose sum is σ = 532888574538096. Its totient is φ = 76124611153728.

The previous prime is 228377325560147. The next prime is 228377325560183. The reversal of 228377325560172 is 271065523773822.

It is a super-2 number, since 2×228377325560172² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144686463 + ... + 146256374.

It is an arithmetic number, because the mean of its divisors is an integer number (22203690605754).

Almost surely, 2^{228377325560172} is an apocalyptic number.

It is an amenable number.

228377325560172 is an abundant number, since it is smaller than the sum of its proper divisors (304511248977924).

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

228377325560172 is a wasteful number, since it uses less digits than its factorization.

228377325560172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291008257 (or 291008255 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 60.

The spelling of 228377325560172 in words is "two hundred twenty-eight trillion, three hundred seventy-seven billion, three hundred twenty-five million, five hundred sixty thousand, one hundred seventy-two".