158283087581 has 16 divisors (see below), whose sum is σ = 166845339648. Its totient is φ = 149964922800.

The previous prime is 158283087563. The next prime is 158283087617. The reversal of 158283087581 is 185780382851.

It is a cyclic number.

It is not a de Polignac number, because 158283087581 - 2⁶ = 158283087517 is a prime.

It is a super-2 number, since 2×158283087581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158283087541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104786 + ... + 572316.

It is an arithmetic number, because the mean of its divisors is an integer number (10427833728).

Almost surely, 2^158283087581 is an apocalyptic number.

It is an amenable number.

158283087581 is a deficient number, since it is larger than the sum of its proper divisors (8562252067).

158283087581 is a wasteful number, since it uses less digits than its factorization.

158283087581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467792.

The product of its (nonzero) digits is 4300800, while the sum is 56.

The spelling of 158283087581 in words is "one hundred fifty-eight billion, two hundred eighty-three million, eighty-seven thousand, five hundred eighty-one".