99919495955 has 16 divisors (see below), whose sum is σ = 121149768960. Its totient is φ = 79106234592.

The previous prime is 99919495927. The next prime is 99919496011. The reversal of 99919495955 is 55959491999.

It is a cyclic number.

It is not a de Polignac number, because 99919495955 - 2¹⁴ = 99919479571 is a prime.

It is a super-2 number, since 2×99919495955² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420776 + ... + 613914.

It is an arithmetic number, because the mean of its divisors is an integer number (7571860560).

Almost surely, 2^99919495955 is an apocalyptic number.

99919495955 is a deficient number, since it is larger than the sum of its proper divisors (21230273005).

99919495955 is a wasteful number, since it uses less digits than its factorization.

99919495955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194218.

The product of its digits is 265720500, while the sum is 74.

The spelling of 99919495955 in words is "ninety-nine billion, nine hundred nineteen million, four hundred ninety-five thousand, nine hundred fifty-five".