158221355984 has 10 divisors (see below), whose sum is σ = 306553877250. Its totient is φ = 79110677984.

The previous prime is 158221355969. The next prime is 158221355989. The reversal of 158221355984 is 489553122851.

It is a happy number.

158221355984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 144117418384 + 14103937600 = 379628^2 + 118760^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158221355989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944417359 + ... + 4944417390.

It is an arithmetic number, because the mean of its divisors is an integer number (30655387725).

Almost surely, 2^158221355984 is an apocalyptic number.

It is an amenable number.

158221355984 is a deficient number, since it is larger than the sum of its proper divisors (148332521266).

158221355984 is an equidigital number, since it uses as much as digits as its factorization.

158221355984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888834757 (or 9888834751 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 53.

The spelling of 158221355984 in words is "one hundred fifty-eight billion, two hundred twenty-one million, three hundred fifty-five thousand, nine hundred eighty-four".