228616801572 has 24 divisors (see below), whose sum is σ = 545844767776. Its totient is φ = 74433377088.

The previous prime is 228616801561. The next prime is 228616801583. The reversal of 228616801572 is 275108616822.

It is an interprime number because it is at equal distance from previous prime (228616801561) and next prime (228616801583).

It is a super-2 number, since 2×228616801572² (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 7 ways as a sum of consecutive naturals, for example, 221527393 + ... + 221528424.

Almost surely, 2^228616801572 is an apocalyptic number.

It is an amenable number.

228616801572 is an abundant number, since it is smaller than the sum of its proper divisors (317227966204).

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

228616801572 is a wasteful number, since it uses less digits than its factorization.

228616801572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443055867 (or 443055865 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 228616801572 in words is "two hundred twenty-eight billion, six hundred sixteen million, eight hundred one thousand, five hundred seventy-two".