162001420036 has 9 divisors (see below), whose sum is σ = 283503893799. Its totient is φ = 81000307524.

The previous prime is 162001420019. The next prime is 162001420067. The reversal of 162001420036 is 630024100261.

The square root of 162001420036 is 402494.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 704365 + ... + 905611.

Almost surely, 2^162001420036 is an apocalyptic number.

162001420036 is the 402494-th square number.

It is an amenable number.

162001420036 is a deficient number, since it is larger than the sum of its proper divisors (121502473763).

162001420036 is an frugal number, since it uses more digits than its factorization.

162001420036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402498 (or 201249 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Multiplying 162001420036 by its sum of digits (25), we get a square (4050035500900 = 2012470²).

Adding to 162001420036 its reverse (630024100261), we get a palindrome (792025520297).

The spelling of 162001420036 in words is "one hundred sixty-two billion, one million, four hundred twenty thousand, thirty-six".