1540068403616 has 96 divisors (see below), whose sum is σ = 3148642119168. Its totient is φ = 740895206400.

The previous prime is 1540068403591. The next prime is 1540068403637. The reversal of 1540068403616 is 6163048600451.

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, 103193531 + ... + 103208453.

It is an arithmetic number, because the mean of its divisors is an integer number (32798355408).

Almost surely, 2^{1540068403616} is an apocalyptic number.

1540068403616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1540068403616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574321059584).

1540068403616 is an abundant number, since it is smaller than the sum of its proper divisors (1608573715552).

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

1540068403616 is a wasteful number, since it uses less digits than its factorization.

1540068403616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15934 (or 15926 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 1540068403616 in words is "one trillion, five hundred forty billion, sixty-eight million, four hundred three thousand, six hundred sixteen".