351616550868 has 108 divisors (see below), whose sum is σ = 977991483924. Its totient is φ = 106437408000.

The previous prime is 351616550837. The next prime is 351616550899. The reversal of 351616550868 is 868055616153.

351616550868 is a `hidden beast` number, since 3 + 5 + 1 + 6 + 1 + 6 + 550 + 86 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (351616550837) and next prime (351616550899).

It can be written as a sum of positive squares in 2 ways, for example, as 111661568964 + 239954981904 = 334158^2 + 489852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4108918 + ... + 4193618.

It is an arithmetic number, because the mean of its divisors is an integer number (9055476703).

Almost surely, 2^351616550868 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 351616550868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488995741962).

351616550868 is an abundant number, since it is smaller than the sum of its proper divisors (626374933056).

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

351616550868 is a wasteful number, since it uses less digits than its factorization.

351616550868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85686 (or 85670 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 351616550868 in words is "three hundred fifty-one billion, six hundred sixteen million, five hundred fifty thousand, eight hundred sixty-eight".