1540140485361 has 16 divisors (see below), whose sum is σ = 2068578860544. Its totient is φ = 1019231717504.

The previous prime is 1540140485347. The next prime is 1540140485383. The reversal of 1540140485361 is 1635840410451.

It is a cyclic number.

It is not a de Polignac number, because 1540140485361 - 2¹¹ = 1540140483313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1540140415361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20452000 + ... + 20527166.

It is an arithmetic number, because the mean of its divisors is an integer number (129286178784).

Almost surely, 2^{1540140485361} is an apocalyptic number.

It is an amenable number.

1540140485361 is a deficient number, since it is larger than the sum of its proper divisors (528438375183).

1540140485361 is a wasteful number, since it uses less digits than its factorization.

1540140485361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125160.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 1540140485361 in words is "one trillion, five hundred forty billion, one hundred forty million, four hundred eighty-five thousand, three hundred sixty-one".