53172318650880 has 640 divisors, whose sum is σ = 201161213358336. Its totient is φ = 11811815424000.

The previous prime is 53172318650821. The next prime is 53172318650933. The reversal of 53172318650880 is 8805681327135.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×53172318650880² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53172318650880.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150282180 + ... + 150635580.

Almost surely, 2^{53172318650880} 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 53172318650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100580606679168).

53172318650880 is an abundant number, since it is smaller than the sum of its proper divisors (147988894707456).

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

53172318650880 is a wasteful number, since it uses less digits than its factorization.

53172318650880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353588 (or 353572 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 53172318650880 in words is "fifty-three trillion, one hundred seventy-two billion, three hundred eighteen million, six hundred fifty thousand, eight hundred eighty".