3661541564 has 12 divisors (see below), whose sum is σ = 6614397888. Its totient is φ = 1771713600.

The previous prime is 3661541561. The next prime is 3661541573. The reversal of 3661541564 is 4651451663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661541561) 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, 14764157 + ... + 14764404.

It is an arithmetic number, because the mean of its divisors is an integer number (551199824).

Almost surely, 2^3661541564 is an apocalyptic number.

It is an amenable number.

3661541564 is a deficient number, since it is larger than the sum of its proper divisors (2952856324).

3661541564 is a wasteful number, since it uses less digits than its factorization.

3661541564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29528596 (or 29528594 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 3661541564 is about 60510.6731411906. The cubic root of 3661541564 is about 1541.3028784189.

The spelling of 3661541564 in words is "three billion, six hundred sixty-one million, five hundred forty-one thousand, five hundred sixty-four".