151666533 has 16 divisors (see below), whose sum is σ = 224884800. Its totient is φ = 101023920.

The previous prime is 151666523. The next prime is 151666583. The reversal of 151666533 is 335666151.

151666533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151666533 - 2¹⁰ = 151665509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151666523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50683 + ... + 53591.

It is an arithmetic number, because the mean of its divisors is an integer number (14055300).

Almost surely, 2^151666533 is an apocalyptic number.

It is an amenable number.

151666533 is a deficient number, since it is larger than the sum of its proper divisors (73218267).

151666533 is a wasteful number, since it uses less digits than its factorization.

151666533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4843 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 151666533 is about 12315.2967077533. The cubic root of 151666533 is about 533.2897703568.

The spelling of 151666533 in words is "one hundred fifty-one million, six hundred sixty-six thousand, five hundred thirty-three".