1005372664 has 8 divisors (see below), whose sum is σ = 1885073760. Its totient is φ = 502686328.

The previous prime is 1005372661. The next prime is 1005372671. The reversal of 1005372664 is 4662735001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005372661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62835784 + ... + 62835799.

It is an arithmetic number, because the mean of its divisors is an integer number (235634220).

Almost surely, 2^1005372664 is an apocalyptic number.

It is an amenable number.

1005372664 is a deficient number, since it is larger than the sum of its proper divisors (879701096).

1005372664 is a wasteful number, since it uses less digits than its factorization.

1005372664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125671589 (or 125671585 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1005372664 is about 31707.6120829053. The cubic root of 1005372664 is about 1001.7876902591.

The spelling of 1005372664 in words is "one billion, five million, three hundred seventy-two thousand, six hundred sixty-four".