99011655 has 48 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 47975424.

The previous prime is 99011651. The next prime is 99011659. The reversal of 99011655 is 55611099.

99011655 = 1037² + 1038² + ... + 1121².

It is an interprime number because it is at equal distance from previous prime (99011651) and next prime (99011659).

It is not a de Polignac number, because 99011655 - 2² = 99011651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99011651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19954 + ... + 24416.

It is an arithmetic number, because the mean of its divisors is an integer number (3917160).

Almost surely, 2^99011655 is an apocalyptic number.

99011655 is a deficient number, since it is larger than the sum of its proper divisors (89012025).

99011655 is a wasteful number, since it uses less digits than its factorization.

99011655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 99011655 is about 9950.4600396163. The cubic root of 99011655 is about 462.6246540065.

The spelling of 99011655 in words is "ninety-nine million, eleven thousand, six hundred fifty-five".