3661336531 has 8 divisors (see below), whose sum is σ = 3761100000. Its totient is φ = 3562071360.

The previous prime is 3661336477. The next prime is 3661336543. The reversal of 3661336531 is 1356331663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661336531 is a prime.

It is a super-2 number, since 2×3661336531² = 26810770386470227922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661334531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109656 + ... + 139093.

It is an arithmetic number, because the mean of its divisors is an integer number (470137500).

Almost surely, 2^3661336531 is an apocalyptic number.

3661336531 is a deficient number, since it is larger than the sum of its proper divisors (99763469).

3661336531 is a wasteful number, since it uses less digits than its factorization.

3661336531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249149.

The product of its digits is 87480, while the sum is 37.

The square root of 3661336531 is about 60508.9789287507. The cubic root of 3661336531 is about 1541.2741087648.

The spelling of 3661336531 in words is "three billion, six hundred sixty-one million, three hundred thirty-six thousand, five hundred thirty-one".