151549966 has 24 divisors (see below), whose sum is σ = 243047520. Its totient is φ = 70851456.

The previous prime is 151549961. The next prime is 151549999. The reversal of 151549966 is 669945151.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151549961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55710 + ... + 58366.

It is an arithmetic number, because the mean of its divisors is an integer number (10126980).

Almost surely, 2^151549966 is an apocalyptic number.

151549966 is a deficient number, since it is larger than the sum of its proper divisors (91497554).

151549966 is a wasteful number, since it uses less digits than its factorization.

151549966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776 (or 2757 counting only the distinct ones).

The product of its digits is 291600, while the sum is 46.

The square root of 151549966 is about 12310.5631877668. The cubic root of 151549966 is about 533.1531110685.

The spelling of 151549966 in words is "one hundred fifty-one million, five hundred forty-nine thousand, nine hundred sixty-six".