162020705 has 48 divisors (see below), whose sum is σ = 250179840. Its totient is φ = 99590400.

The previous prime is 162020701. The next prime is 162020723. The reversal of 162020705 is 507020261.

It is not a de Polignac number, because 162020705 - 2² = 162020701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162020701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212525 + ... + 213285.

It is an arithmetic number, because the mean of its divisors is an integer number (5212080).

Almost surely, 2^162020705 is an apocalyptic number.

It is an amenable number.

162020705 is a deficient number, since it is larger than the sum of its proper divisors (88159135).

162020705 is a wasteful number, since it uses less digits than its factorization.

162020705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 162020705 is about 12728.7354045875. The cubic root of 162020705 is about 545.1594012318.

Adding to 162020705 its reverse (507020261), we get a palindrome (669040966).

The spelling of 162020705 in words is "one hundred sixty-two million, twenty thousand, seven hundred five".