1400166271291 has 16 divisors (see below), whose sum is σ = 1432608807168. Its totient is φ = 1368056707200.

The previous prime is 1400166271279. The next prime is 1400166271307. The reversal of 1400166271291 is 1921726610041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1400166271291 - 2⁹ = 1400166270779 is a prime.

It is a super-3 number, since 3×1400166271291³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400166271261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6159345 + ... + 6382621.

It is an arithmetic number, because the mean of its divisors is an integer number (89538050448).

Almost surely, 2^{1400166271291} is an apocalyptic number.

1400166271291 is a deficient number, since it is larger than the sum of its proper divisors (32442535877).

1400166271291 is a wasteful number, since it uses less digits than its factorization.

1400166271291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224022.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 1400166271291 in words is "one trillion, four hundred billion, one hundred sixty-six million, two hundred seventy-one thousand, two hundred ninety-one".