32203216418 has 4 divisors (see below), whose sum is σ = 48304824630. Its totient is φ = 16101608208.

The previous prime is 32203216411. The next prime is 32203216457. The reversal of 32203216418 is 81461230223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81461230223 = 157 ⋅518861339.

It can be written as a sum of positive squares in only one way, i.e., 24671927329 + 7531289089 = 157073^2 + 86783^2 .

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (32203216411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8050804103 + ... + 8050804106.

Almost surely, 2^32203216418 is an apocalyptic number.

32203216418 is a deficient number, since it is larger than the sum of its proper divisors (16101608212).

32203216418 is a wasteful number, since it uses less digits than its factorization.

32203216418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101608211.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 32203216418 in words is "thirty-two billion, two hundred three million, two hundred sixteen thousand, four hundred eighteen".