1657164030245 has 16 divisors (see below), whose sum is σ = 1991202523632. Its totient is φ = 1323995212800.

The previous prime is 1657164030233. The next prime is 1657164030259. The reversal of 1657164030245 is 5420304617561.

It can be written as a sum of positive squares in 8 ways, for example, as 961464574849 + 695699455396 = 980543^2 + 834086^2 .

It is not a de Polignac number, because 1657164030245 - 2³⁸ = 1382286123301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1657164030196 and 1657164030205.

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, 12115859 + ... + 12251871.

It is an arithmetic number, because the mean of its divisors is an integer number (124450157727).

Almost surely, 2^{1657164030245} is an apocalyptic number.

It is an amenable number.

1657164030245 is a deficient number, since it is larger than the sum of its proper divisors (334038493387).

1657164030245 is a wasteful number, since it uses less digits than its factorization.

1657164030245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139192.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 1657164030245 in words is "one trillion, six hundred fifty-seven billion, one hundred sixty-four million, thirty thousand, two hundred forty-five".