220404386496 has 168 divisors, whose sum is σ = 679840550400. Its totient is φ = 62835429888.

The previous prime is 220404386471. The next prime is 220404386513. The reversal of 220404386496 is 694683404022.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4330605 + ... + 4381203.

Almost surely, 2^220404386496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220404386496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339920275200).

220404386496 is an abundant number, since it is smaller than the sum of its proper divisors (459436163904).

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

220404386496 is a wasteful number, since it uses less digits than its factorization.

220404386496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51091 (or 51074 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 220404386496 in words is "two hundred twenty billion, four hundred four million, three hundred eighty-six thousand, four hundred ninety-six".