660547954 has 48 divisors (see below), whose sum is σ = 1159117344. Its totient is φ = 281128320.

The previous prime is 660547931. The next prime is 660547963. The reversal of 660547954 is 459745066.

It is a super-2 number, since 2×660547954² = 872647199067172232, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1262737 + ... + 1263259.

It is an arithmetic number, because the mean of its divisors is an integer number (24148278).

Almost surely, 2^660547954 is an apocalyptic number.

660547954 is a deficient number, since it is larger than the sum of its proper divisors (498569390).

660547954 is a wasteful number, since it uses less digits than its factorization.

660547954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 660547954 is about 25701.1274849957. The cubic root of 660547954 is about 870.8996524439.

The spelling of 660547954 in words is "six hundred sixty million, five hundred forty-seven thousand, nine hundred fifty-four".