53870367216666 has 64 divisors (see below), whose sum is σ = 144658888206336. Its totient is φ = 12915972158400.

The previous prime is 53870367216593. The next prime is 53870367216703. The reversal of 53870367216666 is 66661276307835.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 53870367216597 and 53870367216606.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4484706550 + ... + 4484718561.

It is an arithmetic number, because the mean of its divisors is an integer number (2260295128224).

Almost surely, 2^{53870367216666} is an apocalyptic number.

53870367216666 is an abundant number, since it is smaller than the sum of its proper divisors (90788520989670).

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

53870367216666 is a wasteful number, since it uses less digits than its factorization.

53870367216666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8969425147.

The product of its (nonzero) digits is 274337280, while the sum is 66.

The spelling of 53870367216666 in words is "fifty-three trillion, eight hundred seventy billion, three hundred sixty-seven million, two hundred sixteen thousand, six hundred sixty-six".