20616418088 has 16 divisors (see below), whose sum is σ = 44178038880. Its totient is φ = 8835607728.

The previous prime is 20616418079. The next prime is 20616418091. The reversal of 20616418088 is 88081461602.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184075106 + ... + 184075217.

It is an arithmetic number, because the mean of its divisors is an integer number (2761127430).

Almost surely, 2^20616418088 is an apocalyptic number.

20616418088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20616418088 is an abundant number, since it is smaller than the sum of its proper divisors (23561620792).

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

20616418088 is a wasteful number, since it uses less digits than its factorization.

20616418088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368150336 (or 368150332 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The spelling of 20616418088 in words is "twenty billion, six hundred sixteen million, four hundred eighteen thousand, eighty-eight".