694133041536 has 256 divisors, whose sum is σ = 2236248000000. Its totient is φ = 210216314880.

The previous prime is 694133041523. The next prime is 694133041541. The reversal of 694133041536 is 635140331496.

It is a happy number.

694133041536 is a `hidden beast` number, since 6 + 9 + 41 + 3 + 30 + 41 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 694133041491 and 694133041500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77129965 + ... + 77138963.

It is an arithmetic number, because the mean of its divisors is an integer number (8735343750).

Almost surely, 2^694133041536 is an apocalyptic number.

694133041536 is a gapful number since it is divisible by the number (66) 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 694133041536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118124000000).

694133041536 is an abundant number, since it is smaller than the sum of its proper divisors (1542114958464).

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

694133041536 is a wasteful number, since it uses less digits than its factorization.

694133041536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062 (or 11044 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 694133041536 in words is "six hundred ninety-four billion, one hundred thirty-three million, forty-one thousand, five hundred thirty-six".