283966118640 has 240 divisors, whose sum is σ = 961260850368. Its totient is φ = 75122049024.

The previous prime is 283966118621. The next prime is 283966118659. The reversal of 283966118640 is 46811669382.

283966118640 is a `hidden beast` number, since 283 + 96 + 61 + 186 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (283966118621) and next prime (283966118659).

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69376434 + ... + 69380526.

Almost surely, 2^283966118640 is an apocalyptic number.

283966118640 is a gapful number since it is divisible by the number (20) 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 283966118640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480630425184).

283966118640 is an abundant number, since it is smaller than the sum of its proper divisors (677294731728).

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

283966118640 is a wasteful number, since it uses less digits than its factorization.

283966118640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856 (or 4847 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 283966118640 in words is "two hundred eighty-three billion, nine hundred sixty-six million, one hundred eighteen thousand, six hundred forty".