66036719449983 has 16 divisors (see below), whose sum is σ = 92687806327680. Its totient is φ = 41705290668384.

The previous prime is 66036719449951. The next prime is 66036719449999. The reversal of 66036719449983 is 38994491763066.

It is not a de Polignac number, because 66036719449983 - 2⁵ = 66036719449951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66036719449903) 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, 28184316 + ... + 30437297.

It is an arithmetic number, because the mean of its divisors is an integer number (5792987895480).

Almost surely, 2^{66036719449983} is an apocalyptic number.

66036719449983 is a deficient number, since it is larger than the sum of its proper divisors (26651086877697).

66036719449983 is a wasteful number, since it uses less digits than its factorization.

66036719449983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58641398.

The product of its (nonzero) digits is 1269789696, while the sum is 75.

The spelling of 66036719449983 in words is "sixty-six trillion, thirty-six billion, seven hundred nineteen million, four hundred forty-nine thousand, nine hundred eighty-three".