667420575142 has 32 divisors (see below), whose sum is σ = 1029740221440. Its totient is φ = 324310721280.

The previous prime is 667420575121. The next prime is 667420575191. The reversal of 667420575142 is 241575024766.

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, 10395303 + ... + 10459309.

It is an arithmetic number, because the mean of its divisors is an integer number (32179381920).

Almost surely, 2^667420575142 is an apocalyptic number.

667420575142 is a deficient number, since it is larger than the sum of its proper divisors (362319646298).

667420575142 is a wasteful number, since it uses less digits than its factorization.

667420575142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65076.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 667420575142 in words is "six hundred sixty-seven billion, four hundred twenty million, five hundred seventy-five thousand, one hundred forty-two".