53660879999 has 8 divisors (see below), whose sum is σ = 55403253888. Its totient is φ = 51919217280.

The previous prime is 53660879983. The next prime is 53660880047. The reversal of 53660879999 is 99997806635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53660879999 - 2⁴ = 53660879983 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53660879929) 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, 22262 + ... + 328355.

It is an arithmetic number, because the mean of its divisors is an integer number (6925406736).

Almost surely, 2^53660879999 is an apocalyptic number.

53660879999 is a deficient number, since it is larger than the sum of its proper divisors (1742373889).

53660879999 is a wasteful number, since it uses less digits than its factorization.

53660879999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355585.

The product of its (nonzero) digits is 198404640, while the sum is 71.

The spelling of 53660879999 in words is "fifty-three billion, six hundred sixty million, eight hundred seventy-nine thousand, nine hundred ninety-nine".