99775540480 has 864 divisors, whose sum is σ = 329771699712. Its totient is φ = 28488499200.

The previous prime is 99775540411. The next prime is 99775540483. The reversal of 99775540480 is 8404557799.

It is a super-2 number, since 2×99775540480² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99775540483) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 551245990 + ... + 551246170.

It is an arithmetic number, because the mean of its divisors is an integer number (381680208).

Almost surely, 2^99775540480 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 99775540480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164885849856).

99775540480 is an abundant number, since it is smaller than the sum of its proper divisors (229996159232).

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

99775540480 is a wasteful number, since it uses less digits than its factorization.

99775540480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 99775540480 in words is "ninety-nine billion, seven hundred seventy-five million, five hundred forty thousand, four hundred eighty".