1540171864222 has 16 divisors (see below), whose sum is σ = 2386119923712. Its totient is φ = 744826424760.

The previous prime is 1540171864213. The next prime is 1540171864223. The reversal of 1540171864222 is 2224681710451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540171864223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6855658 + ... + 7076749.

It is an arithmetic number, because the mean of its divisors is an integer number (149132495232).

Almost surely, 2^{1540171864222} is an apocalyptic number.

1540171864222 is a deficient number, since it is larger than the sum of its proper divisors (845948059490).

1540171864222 is a wasteful number, since it uses less digits than its factorization.

1540171864222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13934223.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 1540171864222 in words is "one trillion, five hundred forty billion, one hundred seventy-one million, eight hundred sixty-four thousand, two hundred twenty-two".