53271660365 has 32 divisors (see below), whose sum is σ = 79880103936. Its totient is φ = 33133239360.

The previous prime is 53271660331. The next prime is 53271660371. The reversal of 53271660365 is 56306617235.

It is a happy number.

It is not a de Polignac number, because 53271660365 - 2¹⁶ = 53271594829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14384 + ... + 326726.

It is an arithmetic number, because the mean of its divisors is an integer number (2496253248).

Almost surely, 2^53271660365 is an apocalyptic number.

53271660365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53271660365 is a deficient number, since it is larger than the sum of its proper divisors (26608443571).

53271660365 is a wasteful number, since it uses less digits than its factorization.

53271660365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312809.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 53271660365 in words is "fifty-three billion, two hundred seventy-one million, six hundred sixty thousand, three hundred sixty-five".