16011015166655 has 4 divisors (see below), whose sum is σ = 19213218199992. Its totient is φ = 12808812133320.

The previous prime is 16011015166591. The next prime is 16011015166723. The reversal of 16011015166655 is 55666151011061.

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

It is not a de Polignac number, because 16011015166655 - 2⁶ = 16011015166591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601101516661 + ... + 1601101516670.

It is an arithmetic number, because the mean of its divisors is an integer number (4803304549998).

Almost surely, 2^{16011015166655} is an apocalyptic number.

16011015166655 is a deficient number, since it is larger than the sum of its proper divisors (3202203033337).

16011015166655 is an equidigital number, since it uses as much as digits as its factorization.

16011015166655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202203033336.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 16011015166655 in words is "sixteen trillion, eleven billion, fifteen million, one hundred sixty-six thousand, six hundred fifty-five".