83220631384 has 32 divisors (see below), whose sum is σ = 173109182400. Its totient is φ = 37186412320.

The previous prime is 83220631381. The next prime is 83220631391. The reversal of 83220631384 is 48313602238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83220631381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8009122 + ... + 8019505.

It is an arithmetic number, because the mean of its divisors is an integer number (5409661950).

Almost surely, 2^83220631384 is an apocalyptic number.

It is an amenable number.

83220631384 is an abundant number, since it is smaller than the sum of its proper divisors (89888551016).

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

83220631384 is a wasteful number, since it uses less digits than its factorization.

83220631384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028703 (or 16028699 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 83220631384 in words is "eighty-three billion, two hundred twenty million, six hundred thirty-one thousand, three hundred eighty-four".