9960977699618 has 256 divisors, whose sum is σ = 18059231232000. Its totient is φ = 4075428000000.

The previous prime is 9960977699609. The next prime is 9960977699627. The reversal of 9960977699618 is 8169967790699.

It is an interprime number because it is at equal distance from previous prime (9960977699609) and next prime (9960977699627).

It is a self number, because there is not a number n which added to its sum of digits gives 9960977699618.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20795360303 + ... + 20795360781.

It is an arithmetic number, because the mean of its divisors is an integer number (70543872000).

Almost surely, 2^{9960977699618} is an apocalyptic number.

9960977699618 is a deficient number, since it is larger than the sum of its proper divisors (8098253532382).

9960977699618 is a wasteful number, since it uses less digits than its factorization.

9960977699618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933.

The product of its (nonzero) digits is 4999796928, while the sum is 86.

The spelling of 9960977699618 in words is "nine trillion, nine hundred sixty billion, nine hundred seventy-seven million, six hundred ninety-nine thousand, six hundred eighteen".