667070373397 has 4 divisors (see below), whose sum is σ = 667364368780. Its totient is φ = 666776378016.

The previous prime is 667070373379. The next prime is 667070373413. The reversal of 667070373397 is 793373070766.

It is a happy number.

667070373397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83482856356 + 583587517041 = 288934^2 + 763929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667070373397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667070373367) 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, 146994288 + ... + 146998825.

It is an arithmetic number, because the mean of its divisors is an integer number (166841092195).

Almost surely, 2^667070373397 is an apocalyptic number.

It is an amenable number.

667070373397 is a deficient number, since it is larger than the sum of its proper divisors (293995383).

667070373397 is a wasteful number, since it uses less digits than its factorization.

667070373397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293995382.

The product of its (nonzero) digits is 21003948, while the sum is 58.

The spelling of 667070373397 in words is "six hundred sixty-seven billion, seventy million, three hundred seventy-three thousand, three hundred ninety-seven".