1655616040043 has 32 divisors (see below), whose sum is σ = 1914219417600. Its totient is φ = 1402655533056.

The previous prime is 1655616039989. The next prime is 1655616040079. The reversal of 1655616040043 is 3400406165561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1655616040043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1655616040843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155612318 + ... + 155622956.

It is an arithmetic number, because the mean of its divisors is an integer number (59819356800).

Almost surely, 2^{1655616040043} is an apocalyptic number.

1655616040043 is a deficient number, since it is larger than the sum of its proper divisors (258603377557).

1655616040043 is a wasteful number, since it uses less digits than its factorization.

1655616040043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1655616040043 in words is "one trillion, six hundred fifty-five billion, six hundred sixteen million, forty thousand, forty-three".