151664775 has 24 divisors (see below), whose sum is σ = 252223440. Its totient is φ = 80413440.

The previous prime is 151664771. The next prime is 151664789. The reversal of 151664775 is 577466151.

It is not a de Polignac number, because 151664775 - 2² = 151664771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151664771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7131 + ... + 18819.

It is an arithmetic number, because the mean of its divisors is an integer number (10509310).

Almost surely, 2^151664775 is an apocalyptic number.

151664775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

151664775 is a deficient number, since it is larger than the sum of its proper divisors (100558665).

151664775 is a wasteful number, since it uses less digits than its factorization.

151664775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11875 (or 11870 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 151664775 is about 12315.2253328959. The cubic root of 151664775 is about 533.2877098560.

The spelling of 151664775 in words is "one hundred fifty-one million, six hundred sixty-four thousand, seven hundred seventy-five".