162666434 has 32 divisors (see below), whose sum is σ = 291102336. Its totient is φ = 66718080.

The previous prime is 162666433. The next prime is 162666437. The reversal of 162666434 is 434666261.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (162666433) 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 15 ways as a sum of consecutive naturals, for example, 27749 + ... + 33095.

It is an arithmetic number, because the mean of its divisors is an integer number (9096948).

Almost surely, 2^162666434 is an apocalyptic number.

162666434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

162666434 is a deficient number, since it is larger than the sum of its proper divisors (128435902).

162666434 is a wasteful number, since it uses less digits than its factorization.

162666434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450.

The product of its digits is 124416, while the sum is 38.

The square root of 162666434 is about 12754.0751918749. The cubic root of 162666434 is about 545.8826804067.

The spelling of 162666434 in words is "one hundred sixty-two million, six hundred sixty-six thousand, four hundred thirty-four".