1660194437245 has 8 divisors (see below), whose sum is σ = 1992248546616. Its totient is φ = 1328145401856.

The previous prime is 1660194437233. The next prime is 1660194437257. The reversal of 1660194437245 is 5427344910661.

It is an interprime number because it is at equal distance from previous prime (1660194437233) and next prime (1660194437257).

It can be written as a sum of positive squares in 4 ways, for example, as 1084643097444 + 575551339801 = 1041462^2 + 758651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660194437245 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1660194437192 and 1660194437201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507112 + ... + 1891441.

It is an arithmetic number, because the mean of its divisors is an integer number (249031068327).

Almost surely, 2^{1660194437245} is an apocalyptic number.

It is an amenable number.

1660194437245 is a deficient number, since it is larger than the sum of its proper divisors (332054109371).

1660194437245 is a wasteful number, since it uses less digits than its factorization.

1660194437245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536991.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1660194437245 in words is "one trillion, six hundred sixty billion, one hundred ninety-four million, four hundred thirty-seven thousand, two hundred forty-five".