1983297755205 has 64 divisors (see below), whose sum is σ = 3801217728000. Its totient is φ = 975329496576.

The previous prime is 1983297755177. The next prime is 1983297755207. The reversal of 1983297755205 is 5025577923891.

1983297755205 is a `hidden beast` number, since 1 + 9 + 8 + 3 + 2 + 9 + 77 + 552 + 0 + 5 = 666.

It is not a de Polignac number, because 1983297755205 - 2¹⁶ = 1983297689669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983297755207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 998001 + ... + 2227689.

It is an arithmetic number, because the mean of its divisors is an integer number (59394027000).

Almost surely, 2^{1983297755205} is an apocalyptic number.

1983297755205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1983297755205 is a deficient number, since it is larger than the sum of its proper divisors (1817919972795).

1983297755205 is a wasteful number, since it uses less digits than its factorization.

1983297755205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230635 (or 1230629 counting only the distinct ones).

The product of its (nonzero) digits is 47628000, while the sum is 63.

The spelling of 1983297755205 in words is "one trillion, nine hundred eighty-three billion, two hundred ninety-seven million, seven hundred fifty-five thousand, two hundred five".