374065661617 has 4 divisors (see below), whose sum is σ = 374172024436. Its totient is φ = 373959298800.

The previous prime is 374065661603. The next prime is 374065661623. The reversal of 374065661617 is 716166560473.

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 195893874801 + 178171786816 = 442599^2 + 422104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-374065661617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (374065662617) 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, 53176134 + ... + 53183167.

It is an arithmetic number, because the mean of its divisors is an integer number (93543006109).

Almost surely, 2^374065661617 is an apocalyptic number.

It is an amenable number.

374065661617 is a deficient number, since it is larger than the sum of its proper divisors (106362819).

374065661617 is a wasteful number, since it uses less digits than its factorization.

374065661617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106362818.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 374065661617 in words is "three hundred seventy-four billion, sixty-five million, six hundred sixty-one thousand, six hundred seventeen".