850066251456240 has 640 divisors, whose sum is σ = 3727965194956800. Its totient is φ = 173169993830400.

The previous prime is 850066251456239. The next prime is 850066251456251. The reversal of 850066251456240 is 42654152660058.

850066251456240 is a `hidden beast` number, since 8 + 5 + 0 + 0 + 6 + 6 + 2 + 5 + 1 + 4 + 5 + 624 + 0 = 666.

It is a super-2 number, since 2×850066251456240² (a number of 31 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 68863836 + ... + 80264315.

It is an arithmetic number, because the mean of its divisors is an integer number (5824945617120).

Almost surely, 2^{850066251456240} is an apocalyptic number.

850066251456240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

850066251456240 is an abundant number, since it is smaller than the sum of its proper divisors (2877898943500560).

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

850066251456240 is a wasteful number, since it uses less digits than its factorization.

850066251456240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149128222 (or 149128210 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 54.

The spelling of 850066251456240 in words is "eight hundred fifty trillion, sixty-six billion, two hundred fifty-one million, four hundred fifty-six thousand, two hundred forty".