83158282440 has 192 divisors, whose sum is σ = 279258071040. Its totient is φ = 21439019520.

The previous prime is 83158282423. The next prime is 83158282447. The reversal of 83158282440 is 4428285138.

83158282440 is a `hidden beast` number, since 8 + 3 + 1 + 582 + 8 + 24 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (83158282447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13534009 + ... + 13540151.

It is an arithmetic number, because the mean of its divisors is an integer number (1454469120).

Almost surely, 2^83158282440 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 83158282440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139629035520).

83158282440 is an abundant number, since it is smaller than the sum of its proper divisors (196099788600).

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

83158282440 is a wasteful number, since it uses less digits than its factorization.

83158282440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 83158282440 in words is "eighty-three billion, one hundred fifty-eight million, two hundred eighty-two thousand, four hundred forty".