155104666 has 8 divisors (see below), whose sum is σ = 238945140. Its totient is φ = 75456288.

The previous prime is 155104637. The next prime is 155104667. The reversal of 155104666 is 666401551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136399041 + 18705625 = 11679^2 + 4325^2 .

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

It is not an unprimeable number, because it can be changed into a prime (155104667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047931 + ... + 1048078.

Almost surely, 2^155104666 is an apocalyptic number.

155104666 is a deficient number, since it is larger than the sum of its proper divisors (83840474).

155104666 is a wasteful number, since it uses less digits than its factorization.

155104666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096048.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 155104666 is about 12454.1023763256. The cubic root of 155104666 is about 537.2894185729.

The spelling of 155104666 in words is "one hundred fifty-five million, one hundred four thousand, six hundred sixty-six".