99941022090 has 384 divisors, whose sum is σ = 335567232000. Its totient is φ = 20057849856.

The previous prime is 99941022073. The next prime is 99941022107. The reversal of 99941022090 is 9022014999.

99941022090 is a `hidden beast` number, since 9 + 9 + 9 + 410 + 220 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (99941022073) and next prime (99941022107).

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 36354036 + ... + 36356784.

It is an arithmetic number, because the mean of its divisors is an integer number (873873000).

Almost surely, 2^99941022090 is an apocalyptic number.

99941022090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a pronic number, being equal to 316134×316135.

It is a practical number, because each smaller number is the sum of distinct divisors of 99941022090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167783616000).

99941022090 is an abundant number, since it is smaller than the sum of its proper divisors (235626209910).

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

99941022090 is a wasteful number, since it uses less digits than its factorization.

99941022090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 2995 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The spelling of 99941022090 in words is "ninety-nine billion, nine hundred forty-one million, twenty-two thousand, ninety".