99976546618 has 16 divisors (see below), whose sum is σ = 161510970600. Its totient is φ = 46140051456.

The previous prime is 99976546577. The next prime is 99976546619. The reversal of 99976546618 is 81664567999.

It can be written as a sum of positive squares in 4 ways, for example, as 94001720409 + 5974826209 = 306597^2 + 77297^2 .

It is a super-2 number, since 2×99976546618² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99976546619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317658 + ... + 548506.

Almost surely, 2^99976546618 is an apocalyptic number.

99976546618 is a deficient number, since it is larger than the sum of its proper divisors (61534423982).

99976546618 is a wasteful number, since it uses less digits than its factorization.

99976546618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247521.

The product of its digits is 176359680, while the sum is 70.

The spelling of 99976546618 in words is "ninety-nine billion, nine hundred seventy-six million, five hundred forty-six thousand, six hundred eighteen".