99201655 has 16 divisors (see below), whose sum is σ = 136653120. Its totient is φ = 67721472.

The previous prime is 99201593. The next prime is 99201689. The reversal of 99201655 is 55610299.

It is not a de Polignac number, because 99201655 - 2¹³ = 99193463 is a prime.

It is a congruent number.

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, 1827 + ... + 14203.

It is an arithmetic number, because the mean of its divisors is an integer number (8540820).

Almost surely, 2^99201655 is an apocalyptic number.

99201655 is a deficient number, since it is larger than the sum of its proper divisors (37451465).

99201655 is a wasteful number, since it uses less digits than its factorization.

99201655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12618.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 99201655 is about 9960.0027610438. The cubic root of 99201655 is about 462.9203852490.

It can be divided in two parts, 99201 and 655, that added together give a square (99856 = 316²).

The spelling of 99201655 in words is "ninety-nine million, two hundred one thousand, six hundred fifty-five".