1540055543315 has 16 divisors (see below), whose sum is σ = 1850662760448. Its totient is φ = 1230314269536.

The previous prime is 1540055543303. The next prime is 1540055543321. The reversal of 1540055543315 is 5133455500451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540055543315 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23599862 + ... + 23665028.

It is an arithmetic number, because the mean of its divisors is an integer number (115666422528).

Almost surely, 2^{1540055543315} is an apocalyptic number.

1540055543315 is a deficient number, since it is larger than the sum of its proper divisors (310607217133).

1540055543315 is an equidigital number, since it uses as much as digits as its factorization.

1540055543315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71738.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 1540055543315 in words is "one trillion, five hundred forty billion, fifty-five million, five hundred forty-three thousand, three hundred fifteen".