994417067520 has 1200 divisors, whose sum is σ = 3812072761728. Its totient is φ = 247478353920.

The previous prime is 994417067513. The next prime is 994417067533. The reversal of 994417067520 is 25760714499.

994417067520 is a `hidden beast` number, since 9 + 9 + 4 + 41 + 70 + 6 + 7 + 520 = 666.

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 polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8800150984 + ... + 8800151096.

Almost surely, 2^994417067520 is an apocalyptic number.

994417067520 is a gapful number since it is divisible by the number (90) 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 994417067520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1906036380864).

994417067520 is an abundant number, since it is smaller than the sum of its proper divisors (2817655694208).

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

994417067520 is a wasteful number, since it uses less digits than its factorization.

994417067520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 994417067520 in words is "nine hundred ninety-four billion, four hundred seventeen million, sixty-seven thousand, five hundred twenty".