1540365540436 has 6 divisors (see below), whose sum is σ = 2695639695770. Its totient is φ = 770182770216.

The previous prime is 1540365540397. The next prime is 1540365540463. The reversal of 1540365540436 is 6340455630451.

It can be written as a sum of positive squares in only one way, i.e., 1194115675536 + 346249864900 = 1092756^2 + 588430^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192545692551 + ... + 192545692558.

Almost surely, 2^{1540365540436} is an apocalyptic number.

It is an amenable number.

1540365540436 is a deficient number, since it is larger than the sum of its proper divisors (1155274155334).

1540365540436 is a wasteful number, since it uses less digits than its factorization.

1540365540436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385091385113 (or 385091385111 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 1540365540436 in words is "one trillion, five hundred forty billion, three hundred sixty-five million, five hundred forty thousand, four hundred thirty-six".