3746664221026 has 16 divisors (see below), whose sum is σ = 5708042379648. Its totient is φ = 1844065753600.

The previous prime is 3746664221009. The next prime is 3746664221063. The reversal of 3746664221026 is 6201224666473.

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 7 ways as a sum of consecutive naturals, for example, 20490070 + ... + 20672113.

It is an arithmetic number, because the mean of its divisors is an integer number (356752648728).

Almost surely, 2^{3746664221026} is an apocalyptic number.

3746664221026 is a deficient number, since it is larger than the sum of its proper divisors (1961378158622).

3746664221026 is a wasteful number, since it uses less digits than its factorization.

3746664221026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41162897.

The product of its (nonzero) digits is 3483648, while the sum is 49.

Adding to 3746664221026 its reverse (6201224666473), we get a palindrome (9947888887499).

The spelling of 3746664221026 in words is "three trillion, seven hundred forty-six billion, six hundred sixty-four million, two hundred twenty-one thousand, twenty-six".