4066437654 has 20 divisors (see below), whose sum is σ = 9111832884. Its totient is φ = 1355479164.

The previous prime is 4066437637. The next prime is 4066437671. The reversal of 4066437654 is 4567346604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4066437637) and next prime (4066437671).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12550572 + ... + 12550895.

Almost surely, 2^4066437654 is an apocalyptic number.

4066437654 is an abundant number, since it is smaller than the sum of its proper divisors (5045395230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4066437654 is a wasteful number, since it uses less digits than its factorization.

4066437654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25101481 (or 25101472 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The square root of 4066437654 is about 63768.6259378387. The cubic root of 4066437654 is about 1596.1414383670.

The spelling of 4066437654 in words is "four billion, sixty-six million, four hundred thirty-seven thousand, six hundred fifty-four".