161500600151626 has 4 divisors (see below), whose sum is σ = 242250900227442. Its totient is φ = 80750300075812.

The previous prime is 161500600151533. The next prime is 161500600151707. The reversal of 161500600151626 is 626151006005161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 156715220774025 + 4785379377601 = 12518595^2 + 2187551^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40375150037905 + ... + 40375150037908.

Almost surely, 2^{161500600151626} is an apocalyptic number.

161500600151626 is a deficient number, since it is larger than the sum of its proper divisors (80750300075816).

161500600151626 is an equidigital number, since it uses as much as digits as its factorization.

161500600151626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80750300075815.

The product of its (nonzero) digits is 64800, while the sum is 40.

Adding to 161500600151626 its reverse (626151006005161), we get a palindrome (787651606156787).

The spelling of 161500600151626 in words is "one hundred sixty-one trillion, five hundred billion, six hundred million, one hundred fifty-one thousand, six hundred twenty-six".