1655616040012 has 12 divisors (see below), whose sum is σ = 3160721531016. Its totient is φ = 752552745440.

The previous prime is 1655616039989. The next prime is 1655616040079. The reversal of 1655616040012 is 2100406165561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18813818593 + ... + 18813818680.

It is an arithmetic number, because the mean of its divisors is an integer number (263393460918).

Almost surely, 2^{1655616040012} is an apocalyptic number.

It is an amenable number.

1655616040012 is a deficient number, since it is larger than the sum of its proper divisors (1505105491004).

1655616040012 is a wasteful number, since it uses less digits than its factorization.

1655616040012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37627637288 (or 37627637286 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 1655616040012 in words is "one trillion, six hundred fifty-five billion, six hundred sixteen million, forty thousand, twelve".