158141994985 has 8 divisors (see below), whose sum is σ = 204368116680. Its totient is φ = 116781780864.

The previous prime is 158141994949. The next prime is 158141994991. The reversal of 158141994985 is 589499141851.

It can be written as a sum of positive squares in 4 ways, for example, as 9314704 + 158132680281 = 3052^2 + 397659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158141994985 - 2²³ = 158133606377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216476820 + ... + 1216476949.

It is an arithmetic number, because the mean of its divisors is an integer number (25546014585).

Almost surely, 2^158141994985 is an apocalyptic number.

It is an amenable number.

158141994985 is a deficient number, since it is larger than the sum of its proper divisors (46226121695).

158141994985 is a wasteful number, since it uses less digits than its factorization.

158141994985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432953787.

The product of its digits is 18662400, while the sum is 64.

The spelling of 158141994985 in words is "one hundred fifty-eight billion, one hundred forty-one million, nine hundred ninety-four thousand, nine hundred eighty-five".