358555221378 has 64 divisors (see below), whose sum is σ = 811064217600. Its totient is φ = 117381033360.

The previous prime is 358555221337. The next prime is 358555221439. The reversal of 358555221378 is 873122555853.

358555221378 is a `hidden beast` number, since 3 + 5 + 8 + 5 + 552 + 2 + 13 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3333783 + ... + 3439653.

It is an arithmetic number, because the mean of its divisors is an integer number (12672878400).

Almost surely, 2^358555221378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 358555221378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405532108800).

358555221378 is an abundant number, since it is smaller than the sum of its proper divisors (452508996222).

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

358555221378 is a wasteful number, since it uses less digits than its factorization.

358555221378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107004 (or 106998 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 54.

The spelling of 358555221378 in words is "three hundred fifty-eight billion, five hundred fifty-five million, two hundred twenty-one thousand, three hundred seventy-eight".