53610121806 has 64 divisors (see below), whose sum is σ = 109672206336. Its totient is φ = 17467049600.

The previous prime is 53610121753. The next prime is 53610121811. The reversal of 53610121806 is 60812101635.

It is a super-3 number, since 3×53610121806³ (a number of 33 digits) contains 333 as substring.

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, 18736816 + ... + 18739676.

It is an arithmetic number, because the mean of its divisors is an integer number (1713628224).

Almost surely, 2^53610121806 is an apocalyptic number.

53610121806 is an abundant number, since it is smaller than the sum of its proper divisors (56062084530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53610121806 is a wasteful number, since it uses less digits than its factorization.

53610121806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 53610121806 in words is "fifty-three billion, six hundred ten million, one hundred twenty-one thousand, eight hundred six".