3665057461 has 4 divisors (see below), whose sum is σ = 3946984972. Its totient is φ = 3383129952.

The previous prime is 3665057453. The next prime is 3665057471. The reversal of 3665057461 is 1647505663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1647505663 = 23 ⋅71630681.

It can be written as a sum of positive squares in 2 ways, for example, as 1338828100 + 2326229361 = 36590^2 + 48231^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665057461 - 2³ = 3665057453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665057401) 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, 140963736 + ... + 140963761.

It is an arithmetic number, because the mean of its divisors is an integer number (986746243).

Almost surely, 2^3665057461 is an apocalyptic number.

It is an amenable number.

3665057461 is a deficient number, since it is larger than the sum of its proper divisors (281927511).

3665057461 is a wasteful number, since it uses less digits than its factorization.

3665057461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281927510.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 3665057461 is about 60539.7180452635. The cubic root of 3665057461 is about 1541.7960521722.

The spelling of 3665057461 in words is "three billion, six hundred sixty-five million, fifty-seven thousand, four hundred sixty-one".