99660173760 has 336 divisors, whose sum is σ = 397611941376. Its totient is φ = 22439172096.

The previous prime is 99660173741. The next prime is 99660173863. The reversal of 99660173760 is 6737106699.

It is a tau number, because it is divible by the number of its divisors (336).

It is a junction number, because it is equal to n+sod(n) for n = 99660173697 and 99660173706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1313829 + ... + 1387611.

Almost surely, 2^99660173760 is an apocalyptic number.

99660173760 is a gapful number since it is divisible by the number (90) 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 99660173760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198805970688).

99660173760 is an abundant number, since it is smaller than the sum of its proper divisors (297951767616).

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

99660173760 is a wasteful number, since it uses less digits than its factorization.

99660173760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73880 (or 73867 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The spelling of 99660173760 in words is "ninety-nine billion, six hundred sixty million, one hundred seventy-three thousand, seven hundred sixty".