667011696 has 80 divisors (see below), whose sum is σ = 1868213760. Its totient is φ = 203846400.

The previous prime is 667011689. The next prime is 667011703. The reversal of 667011696 is 696110766.

It is an interprime number because it is at equal distance from previous prime (667011689) and next prime (667011703).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90685 + ... + 97763.

It is an arithmetic number, because the mean of its divisors is an integer number (23352672).

Almost surely, 2^667011696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667011696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (934106880).

667011696 is an abundant number, since it is smaller than the sum of its proper divisors (1201202064).

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

667011696 is a wasteful number, since it uses less digits than its factorization.

667011696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7254 (or 7248 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 667011696 is about 25826.5695747616. The cubic root of 667011696 is about 873.7311441876.

The spelling of 667011696 in words is "six hundred sixty-seven million, eleven thousand, six hundred ninety-six".