1540204151120 has 40 divisors (see below), whose sum is σ = 3581344157280. Its totient is φ = 616018089600.

The previous prime is 1540204151069. The next prime is 1540204151137. The reversal of 1540204151120 is 211514020451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1540204151120.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 209306 + ... + 1767545.

It is an arithmetic number, because the mean of its divisors is an integer number (89533603932).

Almost surely, 2^{1540204151120} is an apocalyptic number.

1540204151120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1540204151120 is an abundant number, since it is smaller than the sum of its proper divisors (2041140006160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1540204151120 is a wasteful number, since it uses less digits than its factorization.

1540204151120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986603 (or 1986597 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 1540204151120 its reverse (211514020451), we get a palindrome (1751718171571).

The spelling of 1540204151120 in words is "one trillion, five hundred forty billion, two hundred four million, one hundred fifty-one thousand, one hundred twenty".