851341220352 has 240 divisors, whose sum is σ = 2830156572672. Its totient is φ = 241323909120.

The previous prime is 851341220339. The next prime is 851341220357. The reversal of 851341220352 is 253022143158.

851341220352 is a `hidden beast` number, since 8 + 51 + 34 + 1 + 220 + 352 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (851341220357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3992602 + ... + 4200422.

Almost surely, 2^851341220352 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 851341220352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415078286336).

851341220352 is an abundant number, since it is smaller than the sum of its proper divisors (1978815352320).

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

851341220352 is a wasteful number, since it uses less digits than its factorization.

851341220352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207979 (or 207960 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 851341220352 in words is "eight hundred fifty-one billion, three hundred forty-one million, two hundred twenty thousand, three hundred fifty-two".