155450066 has 8 divisors (see below), whose sum is σ = 235579260. Its totient is φ = 76923648.

The previous prime is 155450059. The next prime is 155450081. The reversal of 155450066 is 660054551.

It can be written as a sum of positive squares in 2 ways, for example, as 143304841 + 12145225 = 11971^2 + 3485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400451 + ... + 400838.

Almost surely, 2^155450066 is an apocalyptic number.

155450066 is a deficient number, since it is larger than the sum of its proper divisors (80129194).

155450066 is an equidigital number, since it uses as much as digits as its factorization.

155450066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801388.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 155450066 is about 12467.9615815898. The cubic root of 155450066 is about 537.6879498471.

The spelling of 155450066 in words is "one hundred fifty-five million, four hundred fifty thousand, sixty-six".