73163650560 has 1280 divisors, whose sum is σ = 325227184128. Its totient is φ = 13536460800.

The previous prime is 73163650559. The next prime is 73163650577. The reversal of 73163650560 is 6505636137.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 238317927 + ... + 238318233.

Almost surely, 2^73163650560 is an apocalyptic number.

73163650560 is a gapful number since it is divisible by the number (70) 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 73163650560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162613592064).

73163650560 is an abundant number, since it is smaller than the sum of its proper divisors (252063533568).

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

73163650560 is a wasteful number, since it uses less digits than its factorization.

73163650560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 42.

The spelling of 73163650560 in words is "seventy-three billion, one hundred sixty-three million, six hundred fifty thousand, five hundred sixty".