53666067616 has 96 divisors (see below), whose sum is σ = 121614538752. Its totient is φ = 22835312640.

The previous prime is 53666067599. The next prime is 53666067629. The reversal of 53666067616 is 61676066635.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32386660 + ... + 32388316.

It is an arithmetic number, because the mean of its divisors is an integer number (1266818112).

Almost surely, 2^53666067616 is an apocalyptic number.

53666067616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53666067616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60807269376).

53666067616 is an abundant number, since it is smaller than the sum of its proper divisors (67948471136).

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

53666067616 is a wasteful number, since it uses less digits than its factorization.

53666067616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 53666067616 in words is "fifty-three billion, six hundred sixty-six million, sixty-seven thousand, six hundred sixteen".