158155281642 has 16 divisors (see below), whose sum is σ = 316331975232. Its totient is φ = 52714858560.

The previous prime is 158155281631. The next prime is 158155281659. The reversal of 158155281642 is 246182551851.

It is a super-2 number, since 2×158155281642² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158155281591 and 158155281600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795334 + ... + 974097.

It is an arithmetic number, because the mean of its divisors is an integer number (19770748452).

Almost surely, 2^158155281642 is an apocalyptic number.

158155281642 is an abundant number, since it is smaller than the sum of its proper divisors (158176693590).

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

158155281642 is a wasteful number, since it uses less digits than its factorization.

158155281642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784333.

The product of its digits is 768000, while the sum is 48.

The spelling of 158155281642 in words is "one hundred fifty-eight billion, one hundred fifty-five million, two hundred eighty-one thousand, six hundred forty-two".