120811166618 has 4 divisors (see below), whose sum is σ = 181216749930. Its totient is φ = 60405583308.

The previous prime is 120811166603. The next prime is 120811166633. The reversal of 120811166618 is 816661118021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (120811166603) and next prime (120811166633).

It can be written as a sum of positive squares in only one way, i.e., 83057510809 + 37753655809 = 288197^2 + 194303^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30202791653 + ... + 30202791656.

Almost surely, 2^120811166618 is an apocalyptic number.

120811166618 is a deficient number, since it is larger than the sum of its proper divisors (60405583312).

120811166618 is an equidigital number, since it uses as much as digits as its factorization.

120811166618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60405583311.

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 120811166618 in words is "one hundred twenty billion, eight hundred eleven million, one hundred sixty-six thousand, six hundred eighteen".