53657760066 has 16 divisors (see below), whose sum is σ = 110777311488. Its totient is φ = 17308954800.

The previous prime is 53657760031. The next prime is 53657760067. The reversal of 53657760066 is 66006775635.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53657760067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144241105 + ... + 144241476.

It is an arithmetic number, because the mean of its divisors is an integer number (6923581968).

Almost surely, 2^53657760066 is an apocalyptic number.

53657760066 is an abundant number, since it is smaller than the sum of its proper divisors (57119551422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53657760066 is a wasteful number, since it uses less digits than its factorization.

53657760066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288482617.

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 53657760066 in words is "fifty-three billion, six hundred fifty-seven million, seven hundred sixty thousand, sixty-six".