83366647650 has 288 divisors, whose sum is σ = 278617667328. Its totient is φ = 17557862400.

The previous prime is 83366647631. The next prime is 83366647657. The reversal of 83366647650 is 5674666338.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83366647657) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1055847 + ... + 1132053.

It is an arithmetic number, because the mean of its divisors is an integer number (967422456).

Almost surely, 2^83366647650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83366647650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139308833664).

83366647650 is an abundant number, since it is smaller than the sum of its proper divisors (195251019678).

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

83366647650 is a wasteful number, since it uses less digits than its factorization.

83366647650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76266 (or 76258 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 83366647650 in words is "eighty-three billion, three hundred sixty-six million, six hundred forty-seven thousand, six hundred fifty".