3661354375 has 20 divisors (see below), whose sum is σ = 5228838736. Its totient is φ = 2510640000.

The previous prime is 3661354339. The next prime is 3661354391. The reversal of 3661354375 is 5734531663.

It is not a de Polignac number, because 3661354375 - 2¹⁷ = 3661223303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 414066 + ... + 422815.

Almost surely, 2^3661354375 is an apocalyptic number.

3661354375 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3661354375 is a deficient number, since it is larger than the sum of its proper divisors (1567484361).

3661354375 is an frugal number, since it uses more digits than its factorization.

3661354375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836908 (or 836893 counting only the distinct ones).

The product of its digits is 680400, while the sum is 43.

The square root of 3661354375 is about 60509.1263777622. The cubic root of 3661354375 is about 1541.2766126274.

The spelling of 3661354375 in words is "three billion, six hundred sixty-one million, three hundred fifty-four thousand, three hundred seventy-five".