660155452 has 24 divisors (see below), whose sum is σ = 1261238832. Its totient is φ = 299846400.

The previous prime is 660155417. The next prime is 660155477. The reversal of 660155452 is 254551066.

660155452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63502 + ... + 73162.

It is an arithmetic number, because the mean of its divisors is an integer number (52551618).

Almost surely, 2^660155452 is an apocalyptic number.

It is an amenable number.

660155452 is a deficient number, since it is larger than the sum of its proper divisors (601083380).

660155452 is a wasteful number, since it uses less digits than its factorization.

660155452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11229 (or 11227 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 660155452 is about 25693.4904596476. The cubic root of 660155452 is about 870.7271201387.

The spelling of 660155452 in words is "six hundred sixty million, one hundred fifty-five thousand, four hundred fifty-two".