216562203400 has 48 divisors (see below), whose sum is σ = 507471805440. Its totient is φ = 85942785600.

The previous prime is 216562203383. The next prime is 216562203419. The reversal of 216562203400 is 4302265612.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4237636 + ... + 4288435.

It is an arithmetic number, because the mean of its divisors is an integer number (10572329280).

Almost surely, 2^216562203400 is an apocalyptic number.

216562203400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216562203400 is an abundant number, since it is smaller than the sum of its proper divisors (290909602040).

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

216562203400 is a wasteful number, since it uses less digits than its factorization.

216562203400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8526214 (or 8526205 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 216562203400 in words is "two hundred sixteen billion, five hundred sixty-two million, two hundred three thousand, four hundred".