53306362661 has 4 divisors (see below), whose sum is σ = 53306839392. Its totient is φ = 53305885932.

The previous prime is 53306362657. The next prime is 53306362709. The reversal of 53306362661 is 16626360335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53306362661 - 2² = 53306362657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53306362961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30296 + ... + 327918.

It is an arithmetic number, because the mean of its divisors is an integer number (13326709848).

Almost surely, 2^53306362661 is an apocalyptic number.

It is an amenable number.

53306362661 is a deficient number, since it is larger than the sum of its proper divisors (476731).

53306362661 is a wasteful number, since it uses less digits than its factorization.

53306362661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476730.

The product of its (nonzero) digits is 349920, while the sum is 41.

The spelling of 53306362661 in words is "fifty-three billion, three hundred six million, three hundred sixty-two thousand, six hundred sixty-one".