1000664545 has 16 divisors (see below), whose sum is σ = 1290896640. Its totient is φ = 742258944.

The previous prime is 1000664543. The next prime is 1000664551. The reversal of 1000664545 is 5454660001.

It is a cyclic number.

It is not a de Polignac number, because 1000664545 - 2¹ = 1000664543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000664543) 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, 107592 + ... + 116521.

It is an arithmetic number, because the mean of its divisors is an integer number (80681040).

Almost surely, 2^1000664545 is an apocalyptic number.

It is an amenable number.

1000664545 is a deficient number, since it is larger than the sum of its proper divisors (290232095).

1000664545 is a wasteful number, since it uses less digits than its factorization.

1000664545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224184.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1000664545 is about 31633.2822356454. The cubic root of 1000664545 is about 1000.2214659492.

The spelling of 1000664545 in words is "one billion, six hundred sixty-four thousand, five hundred forty-five".