152666505 has 16 divisors (see below), whose sum is σ = 271407360. Its totient is φ = 81422064.

The previous prime is 152666489. The next prime is 152666509. The reversal of 152666505 is 505666251.

It is a happy number.

It is not a de Polignac number, because 152666505 - 2⁴ = 152666489 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 152666505.

It is not an unprimeable number, because it can be changed into a prime (152666509) 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, 565297 + ... + 565566.

It is an arithmetic number, because the mean of its divisors is an integer number (16962960).

Almost surely, 2^152666505 is an apocalyptic number.

152666505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152666505 is a deficient number, since it is larger than the sum of its proper divisors (118740855).

152666505 is a wasteful number, since it uses less digits than its factorization.

152666505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130877 (or 1130871 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 152666505 is about 12355.8287864473. The cubic root of 152666505 is about 534.4592375667.

The spelling of 152666505 in words is "one hundred fifty-two million, six hundred sixty-six thousand, five hundred five".