667546830 has 48 divisors (see below), whose sum is σ = 1777963824. Its totient is φ = 173669760.

The previous prime is 667546823. The next prime is 667546849. The reversal of 667546830 is 38645766.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86764 + ... + 94143.

It is an arithmetic number, because the mean of its divisors is an integer number (37040913).

Almost surely, 2^667546830 is an apocalyptic number.

667546830 is an abundant number, since it is smaller than the sum of its proper divisors (1110416994).

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

667546830 is a wasteful number, since it uses less digits than its factorization.

667546830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180961 (or 180958 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 667546830 is about 25836.9276424268. The cubic root of 667546830 is about 873.9647424192.

The spelling of 667546830 in words is "six hundred sixty-seven million, five hundred forty-six thousand, eight hundred thirty".