65675557805 has 48 divisors (see below), whose sum is σ = 97346551680. Its totient is φ = 42172817280.

The previous prime is 65675557799. The next prime is 65675557813. The reversal of 65675557805 is 50875557656.

It is not a de Polignac number, because 65675557805 - 2⁶ = 65675557741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 635 + ... + 362424.

It is an arithmetic number, because the mean of its divisors is an integer number (2028053160).

Almost surely, 2^65675557805 is an apocalyptic number.

65675557805 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65675557805 is a deficient number, since it is larger than the sum of its proper divisors (31670993875).

65675557805 is a wasteful number, since it uses less digits than its factorization.

65675557805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363122 (or 363111 counting only the distinct ones).

The product of its (nonzero) digits is 44100000, while the sum is 59.

The spelling of 65675557805 in words is "sixty-five billion, six hundred seventy-five million, five hundred fifty-seven thousand, eight hundred five".