3950349728066 has 16 divisors (see below), whose sum is σ = 6792123152256. Its totient is φ = 1687983264576.

The previous prime is 3950349728053. The next prime is 3950349728107. The reversal of 3950349728066 is 6608279430593.

It is a super-3 number, since 3×3950349728066³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418641926 + ... + 418651361.

It is an arithmetic number, because the mean of its divisors is an integer number (424507697016).

Almost surely, 2^{3950349728066} is an apocalyptic number.

3950349728066 is a deficient number, since it is larger than the sum of its proper divisors (2841773424190).

3950349728066 is a wasteful number, since it uses less digits than its factorization.

3950349728066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837293633.

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 3950349728066 in words is "three trillion, nine hundred fifty billion, three hundred forty-nine million, seven hundred twenty-eight thousand, sixty-six".