99902041515 has 48 divisors (see below), whose sum is σ = 182418912000. Its totient is φ = 50437636416.

The previous prime is 99902041511. The next prime is 99902041559. The reversal of 99902041515 is 51514020999.

99902041515 is a `hidden beast` number, since 9 + 9 + 90 + 2 + 0 + 41 + 515 = 666.

99902041515 is a nontrivial binomial coefficient, being equal to C(446995, 2).

It is not a de Polignac number, because 99902041515 - 2² = 99902041511 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (99902041511) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1072786 + ... + 1162184.

It is an arithmetic number, because the mean of its divisors is an integer number (3800394000).

Almost surely, 2^99902041515 is an apocalyptic number.

99902041515 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

99902041515 is the 446994-th triangular number.

99902041515 is a deficient number, since it is larger than the sum of its proper divisors (82516870485).

99902041515 is a wasteful number, since it uses less digits than its factorization.

99902041515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90736 (or 90733 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The spelling of 99902041515 in words is "ninety-nine billion, nine hundred two million, forty-one thousand, five hundred fifteen".