667536954 has 16 divisors (see below), whose sum is σ = 1525798848. Its totient is φ = 190724832.

The previous prime is 667536953. The next prime is 667537001. The reversal of 667536954 is 459635766.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 667536897 and 667536906.

It is not an unprimeable number, because it can be changed into a prime (667536953) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7946827 + ... + 7946910.

It is an arithmetic number, because the mean of its divisors is an integer number (95362428).

Almost surely, 2^667536954 is an apocalyptic number.

667536954 is an abundant number, since it is smaller than the sum of its proper divisors (858261894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667536954 is a wasteful number, since it uses less digits than its factorization.

667536954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15893749.

The product of its digits is 4082400, while the sum is 51.

The square root of 667536954 is about 25836.7365199245. The cubic root of 667536954 is about 873.9604324502.

The spelling of 667536954 in words is "six hundred sixty-seven million, five hundred thirty-six thousand, nine hundred fifty-four".