6466581074 has 32 divisors (see below), whose sum is σ = 10380363840. Its totient is φ = 3010687488.

The previous prime is 6466581073. The next prime is 6466581083. The reversal of 6466581074 is 4701856646.

It is a super-2 number, since 2×6466581074² = 83633341573229986952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6466581073) 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, 1448654 + ... + 1453110.

It is an arithmetic number, because the mean of its divisors is an integer number (324386370).

Almost surely, 2^6466581074 is an apocalyptic number.

6466581074 is a deficient number, since it is larger than the sum of its proper divisors (3913782766).

6466581074 is a wasteful number, since it uses less digits than its factorization.

6466581074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 6466581074 is about 80415.0550208106. The cubic root of 6466581074 is about 1863.0517091991.

The spelling of 6466581074 in words is "six billion, four hundred sixty-six million, five hundred eighty-one thousand, seventy-four".