168990662 has 8 divisors (see below), whose sum is σ = 258879456. Its totient is φ = 82697512.

The previous prime is 168990589. The next prime is 168990667. The reversal of 168990662 is 266099861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168990667) 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 3 ways as a sum of consecutive naturals, for example, 898793 + ... + 898980.

It is an arithmetic number, because the mean of its divisors is an integer number (32359932).

Almost surely, 2^168990662 is an apocalyptic number.

168990662 is a deficient number, since it is larger than the sum of its proper divisors (89888794).

168990662 is a wasteful number, since it uses less digits than its factorization.

168990662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797822.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 168990662 is about 12999.6408411925. The cubic root of 168990662 is about 552.8672982022.

The spelling of 168990662 in words is "one hundred sixty-eight million, nine hundred ninety thousand, six hundred sixty-two".