162581742826 has 32 divisors (see below), whose sum is σ = 258270670800. Its totient is φ = 76645900800.

The previous prime is 162581742823. The next prime is 162581742833. The reversal of 162581742826 is 628247185261.

It can be written as a sum of positive squares in 8 ways, for example, as 113703165601 + 48878577225 = 337199^2 + 221085^2 .

It is not an unprimeable number, because it can be changed into a prime (162581742823) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 237540 + ... + 617728.

Almost surely, 2^162581742826 is an apocalyptic number.

162581742826 is a deficient number, since it is larger than the sum of its proper divisors (95688927974).

162581742826 is a wasteful number, since it uses less digits than its factorization.

162581742826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380394.

The product of its digits is 2580480, while the sum is 52.

The spelling of 162581742826 in words is "one hundred sixty-two billion, five hundred eighty-one million, seven hundred forty-two thousand, eight hundred twenty-six".