53389679616 has 792 divisors, whose sum is σ = 196350860160. Its totient is φ = 13675364352.

The previous prime is 53389679597. The next prime is 53389679617. The reversal of 53389679616 is 61697698335.

53389679616 is a `hidden beast` number, since 5 + 3 + 3 + 8 + 9 + 6 + 7 + 9 + 616 = 666.

It is a super-3 number, since 3×53389679616³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53389679617) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 643249111 + ... + 643249193.

Almost surely, 2^53389679616 is an apocalyptic number.

53389679616 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 53389679616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98175430080).

53389679616 is an abundant number, since it is smaller than the sum of its proper divisors (142961180544).

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

53389679616 is a wasteful number, since it uses less digits than its factorization.

53389679616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 167 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The spelling of 53389679616 in words is "fifty-three billion, three hundred eighty-nine million, six hundred seventy-nine thousand, six hundred sixteen".