1540651916159 has 8 divisors (see below), whose sum is σ = 1545289307328. Its totient is φ = 1536014914560.

The previous prime is 1540651916093. The next prime is 1540651916171. The reversal of 1540651916159 is 9516191560451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1540651916159 - 2²⁸ = 1540383480703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1540651916159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540651916659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9137114 + ... + 9304200.

It is an arithmetic number, because the mean of its divisors is an integer number (193161163416).

Almost surely, 2^{1540651916159} is an apocalyptic number.

1540651916159 is a deficient number, since it is larger than the sum of its proper divisors (4637391169).

1540651916159 is a wasteful number, since it uses less digits than its factorization.

1540651916159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194785.

The product of its (nonzero) digits is 1458000, while the sum is 53.

The spelling of 1540651916159 in words is "one trillion, five hundred forty billion, six hundred fifty-one million, nine hundred sixteen thousand, one hundred fifty-nine".