53660646352345 has 16 divisors (see below), whose sum is σ = 64665895207680. Its totient is φ = 42746457881344.

The previous prime is 53660646352309. The next prime is 53660646352349. The reversal of 53660646352345 is 54325364606635.

It is a cyclic number.

It is not a de Polignac number, because 53660646352345 - 2¹³ = 53660646344153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53660646352345.

It is not an unprimeable number, because it can be changed into a prime (53660646352349) 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, 19790529 + ... + 22338001.

It is an arithmetic number, because the mean of its divisors is an integer number (4041618450480).

Almost surely, 2^{53660646352345} is an apocalyptic number.

It is an amenable number.

53660646352345 is a deficient number, since it is larger than the sum of its proper divisors (11005248855335).

53660646352345 is a wasteful number, since it uses less digits than its factorization.

53660646352345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565344.

The product of its (nonzero) digits is 139968000, while the sum is 58.

The spelling of 53660646352345 in words is "fifty-three trillion, six hundred sixty billion, six hundred forty-six million, three hundred fifty-two thousand, three hundred forty-five".