4081664951 has 16 divisors (see below), whose sum is σ = 5025151488. Its totient is φ = 3228444000.

The previous prime is 4081664927. The next prime is 4081664959. The reversal of 4081664951 is 1594661804.

It is a cyclic number.

It is not a de Polignac number, because 4081664951 - 2¹⁴ = 4081648567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081664959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451526 + ... + 460476.

It is an arithmetic number, because the mean of its divisors is an integer number (314071968).

Almost surely, 2^4081664951 is an apocalyptic number.

4081664951 is a deficient number, since it is larger than the sum of its proper divisors (943486537).

4081664951 is a wasteful number, since it uses less digits than its factorization.

4081664951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13982.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 4081664951 is about 63887.9092708472. The cubic root of 4081664951 is about 1598.1312754290.

The spelling of 4081664951 in words is "four billion, eighty-one million, six hundred sixty-four thousand, nine hundred fifty-one".