657106947141 has 16 divisors (see below), whose sum is σ = 914987090304. Its totient is φ = 418680356864.

The previous prime is 657106947121. The next prime is 657106947143. The reversal of 657106947141 is 141749601756.

It is a cyclic number.

It is not a de Polignac number, because 657106947141 - 2¹⁰ = 657106946117 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657106947143) 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, 3828636 + ... + 3996581.

It is an arithmetic number, because the mean of its divisors is an integer number (57186693144).

Almost surely, 2^657106947141 is an apocalyptic number.

It is an amenable number.

657106947141 is a deficient number, since it is larger than the sum of its proper divisors (257880143163).

657106947141 is a wasteful number, since it uses less digits than its factorization.

657106947141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7826460.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 657106947141 in words is "six hundred fifty-seven billion, one hundred six million, nine hundred forty-seven thousand, one hundred forty-one".