2105651654 has 16 divisors (see below), whose sum is σ = 3346029648. Its totient is φ = 990373632.

The previous prime is 2105651641. The next prime is 2105651677. The reversal of 2105651654 is 4561565012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53642 + ... + 84194.

It is an arithmetic number, because the mean of its divisors is an integer number (209126853).

Almost surely, 2^2105651654 is an apocalyptic number.

2105651654 is a deficient number, since it is larger than the sum of its proper divisors (1240377994).

2105651654 is a wasteful number, since it uses less digits than its factorization.

2105651654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32599.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2105651654 is about 45887.3801169777. The cubic root of 2105651654 is about 1281.7269280787.

The spelling of 2105651654 in words is "two billion, one hundred five million, six hundred fifty-one thousand, six hundred fifty-four".