3666338655 has 32 divisors (see below), whose sum is σ = 6713860608. Its totient is φ = 1673616000.

The previous prime is 3666338639. The next prime is 3666338671. The reversal of 3666338655 is 5568336663.

It is an interprime number because it is at equal distance from previous prime (3666338639) and next prime (3666338671).

It is not a de Polignac number, because 3666338655 - 2⁴ = 3666338639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3666338598 and 3666338607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48700 + ... + 98510.

It is an arithmetic number, because the mean of its divisors is an integer number (209808144).

Almost surely, 2^3666338655 is an apocalyptic number.

3666338655 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3666338655 is a deficient number, since it is larger than the sum of its proper divisors (3047521953).

3666338655 is a wasteful number, since it uses less digits than its factorization.

3666338655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50527.

The product of its digits is 6998400, while the sum is 51.

The square root of 3666338655 is about 60550.2985541773. The cubic root of 3666338655 is about 1541.9756864384.

The spelling of 3666338655 in words is "three billion, six hundred sixty-six million, three hundred thirty-eight thousand, six hundred fifty-five".