3721325366061 has 6 divisors (see below), whose sum is σ = 5375247750990. Its totient is φ = 2480883577368.

The previous prime is 3721325366047. The next prime is 3721325366113. The reversal of 3721325366061 is 1606635231273.

It is a happy number.

3721325366061 is a `hidden beast` number, since 3 + 7 + 2 + 1 + 3 + 2 + 5 + 36 + 606 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3601906741161 + 119418624900 = 1897869^2 + 345570^2 .

It is not a de Polignac number, because 3721325366061 - 2¹⁷ = 3721325234989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3721325365998 and 3721325366016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721325366041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206740298106 + ... + 206740298123.

It is an arithmetic number, because the mean of its divisors is an integer number (895874625165).

Almost surely, 2^{3721325366061} is an apocalyptic number.

It is an amenable number.

3721325366061 is a deficient number, since it is larger than the sum of its proper divisors (1653922384929).

3721325366061 is a wasteful number, since it uses less digits than its factorization.

3721325366061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413480596235 (or 413480596232 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 3721325366061 in words is "three trillion, seven hundred twenty-one billion, three hundred twenty-five million, three hundred sixty-six thousand, sixty-one".