355247899416 has 256 divisors, whose sum is σ = 1068860160000. Its totient is φ = 110338174080.

The previous prime is 355247899381. The next prime is 355247899421. The reversal of 355247899416 is 614998742553.

355247899416 is a `hidden beast` number, since 3 + 5 + 524 + 7 + 8 + 9 + 94 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20269105 + ... + 20286623.

It is an arithmetic number, because the mean of its divisors is an integer number (4175235000).

Almost surely, 2^355247899416 is an apocalyptic number.

355247899416 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 355247899416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534430080000).

355247899416 is an abundant number, since it is smaller than the sum of its proper divisors (713612260584).

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

355247899416 is a wasteful number, since it uses less digits than its factorization.

355247899416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17626 (or 17604 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 355247899416 in words is "three hundred fifty-five billion, two hundred forty-seven million, eight hundred ninety-nine thousand, four hundred sixteen".