667231231404 has 12 divisors (see below), whose sum is σ = 1556872873304. Its totient is φ = 222410410464.

The previous prime is 667231231369. The next prime is 667231231409. The reversal of 667231231404 is 404132132766.

667231231404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×667231231404² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667231231409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27801301297 + ... + 27801301320.

Almost surely, 2^667231231404 is an apocalyptic number.

It is an amenable number.

667231231404 is an abundant number, since it is smaller than the sum of its proper divisors (889641641900).

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

667231231404 is a wasteful number, since it uses less digits than its factorization.

667231231404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55602602624 (or 55602602622 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 667231231404 in words is "six hundred sixty-seven billion, two hundred thirty-one million, two hundred thirty-one thousand, four hundred four".