70523010167657 has 4 divisors (see below), whose sum is σ = 72163080171600. Its totient is φ = 68882940163716.

The previous prime is 70523010167591. The next prime is 70523010167707. The reversal of 70523010167657 is 75676101032507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70523010167657 - 2³² = 70518715200361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70523010163657) 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, 820035001907 + ... + 820035001992.

It is an arithmetic number, because the mean of its divisors is an integer number (18040770042900).

Almost surely, 2^{70523010167657} is an apocalyptic number.

It is an amenable number.

70523010167657 is a deficient number, since it is larger than the sum of its proper divisors (1640070003943).

70523010167657 is a wasteful number, since it uses less digits than its factorization.

70523010167657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640070003942.

The product of its (nonzero) digits is 1852200, while the sum is 50.

The spelling of 70523010167657 in words is "seventy trillion, five hundred twenty-three billion, ten million, one hundred sixty-seven thousand, six hundred fifty-seven".