667156476 has 48 divisors (see below), whose sum is σ = 1780498944. Its totient is φ = 190464576.

The previous prime is 667156471. The next prime is 667156489. The reversal of 667156476 is 674651766.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667156471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143281 + ... + 147863.

It is an arithmetic number, because the mean of its divisors is an integer number (37093728).

Almost surely, 2^667156476 is an apocalyptic number.

It is an amenable number.

667156476 is an abundant number, since it is smaller than the sum of its proper divisors (1113342468).

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

667156476 is a wasteful number, since it uses less digits than its factorization.

667156476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330 (or 6328 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 667156476 is about 25829.3723500979. The cubic root of 667156476 is about 873.7943562943.

The spelling of 667156476 in words is "six hundred sixty-seven million, one hundred fifty-six thousand, four hundred seventy-six".