150661663 has 4 divisors (see below), whose sum is σ = 150796240. Its totient is φ = 150527088.

The previous prime is 150661613. The next prime is 150661673. The reversal of 150661663 is 366166051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366166051 = 17959 ⋅20389.

It is a cyclic number.

It is not a de Polignac number, because 150661663 - 2¹⁷ = 150530591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150661613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65595 + ... + 67852.

It is an arithmetic number, because the mean of its divisors is an integer number (37699060).

Almost surely, 2^150661663 is an apocalyptic number.

150661663 is a deficient number, since it is larger than the sum of its proper divisors (134577).

150661663 is a wasteful number, since it uses less digits than its factorization.

150661663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134576.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 150661663 is about 12274.4312699204. The cubic root of 150661663 is about 532.1093851904.

The spelling of 150661663 in words is "one hundred fifty million, six hundred sixty-one thousand, six hundred sixty-three".