151663806 has 64 divisors (see below), whose sum is σ = 386396160. Its totient is φ = 43195680.

The previous prime is 151663801. The next prime is 151663819. The reversal of 151663806 is 608366151.

It is a happy number.

151663806 is a `hidden beast` number, since 1 + 5 + 16 + 638 + 0 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151663801) 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 31 ways as a sum of consecutive naturals, for example, 229116 + ... + 229776.

It is an arithmetic number, because the mean of its divisors is an integer number (6037440).

Almost surely, 2^151663806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151663806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193198080).

151663806 is an abundant number, since it is smaller than the sum of its proper divisors (234732354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151663806 is a wasteful number, since it uses less digits than its factorization.

151663806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 151663806 is about 12315.1859912873. The cubic root of 151663806 is about 533.2865741124.

The spelling of 151663806 in words is "one hundred fifty-one million, six hundred sixty-three thousand, eight hundred six".