53168940720 has 480 divisors, whose sum is σ = 213661753344. Its totient is φ = 11592806400.

The previous prime is 53168940697. The next prime is 53168940743. The reversal of 53168940720 is 2704986135.

53168940720 is a `hidden beast` number, since 531 + 6 + 8 + 9 + 40 + 72 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (53168940697) and next prime (53168940743).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11090644 + ... + 11095436.

It is a 1-persistent number, because it is pandigital, but 2⋅53168940720 = 106337881440 is not.

Almost surely, 2^53168940720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53168940720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106830876672).

53168940720 is an abundant number, since it is smaller than the sum of its proper divisors (160492812624).

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

53168940720 is a wasteful number, since it uses less digits than its factorization.

53168940720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921 (or 4912 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 53168940720 in words is "fifty-three billion, one hundred sixty-eight million, nine hundred forty thousand, seven hundred twenty".