3745661006 has 4 divisors (see below), whose sum is σ = 5618491512. Its totient is φ = 1872830502.

The previous prime is 3745660999. The next prime is 3745661009. The reversal of 3745661006 is 6001665473.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6001665473 = 6089 ⋅985657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3745661009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936415250 + ... + 936415253.

It is an arithmetic number, because the mean of its divisors is an integer number (1404622878).

Almost surely, 2^3745661006 is an apocalyptic number.

3745661006 is a deficient number, since it is larger than the sum of its proper divisors (1872830506).

3745661006 is a wasteful number, since it uses less digits than its factorization.

3745661006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872830505.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 3745661006 is about 61201.8055779403. The cubic root of 3745661006 is about 1553.0168100215.

The spelling of 3745661006 in words is "three billion, seven hundred forty-five million, six hundred sixty-one thousand, six".