2151085108766 has 16 divisors (see below), whose sum is σ = 3520046611440. Its totient is φ = 977741191680.

The previous prime is 2151085108763. The next prime is 2151085108769. The reversal of 2151085108766 is 6678015801512.

It is an interprime number because it is at equal distance from previous prime (2151085108763) and next prime (2151085108769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151085108763) 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, 335441 + ... + 2101116.

It is an arithmetic number, because the mean of its divisors is an integer number (220002913215).

Almost surely, 2^{2151085108766} is an apocalyptic number.

2151085108766 is a deficient number, since it is larger than the sum of its proper divisors (1368961502674).

2151085108766 is a wasteful number, since it uses less digits than its factorization.

2151085108766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476699.

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 2151085108766 in words is "two trillion, one hundred fifty-one billion, eighty-five million, one hundred eight thousand, seven hundred sixty-six".