3651367161 has 64 divisors (see below), whose sum is σ = 5735116800. Its totient is φ = 2046974976.

The previous prime is 3651367157. The next prime is 3651367171. The reversal of 3651367161 is 1617631563.

It is a happy number.

It is not a de Polignac number, because 3651367161 - 2² = 3651367157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (3651367171) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2053905 + ... + 2055681.

It is an arithmetic number, because the mean of its divisors is an integer number (89611200).

Almost surely, 2^3651367161 is an apocalyptic number.

It is an amenable number.

3651367161 is a deficient number, since it is larger than the sum of its proper divisors (2083749639).

3651367161 is a wasteful number, since it uses less digits than its factorization.

3651367161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its digits is 68040, while the sum is 39.

The square root of 3651367161 is about 60426.5435135918. The cubic root of 3651367161 is about 1539.8739370863.

The spelling of 3651367161 in words is "three billion, six hundred fifty-one million, three hundred sixty-seven thousand, one hundred sixty-one".