1064501661 has 8 divisors (see below), whose sum is σ = 1446115680. Its totient is φ = 696277712.

The previous prime is 1064501639. The next prime is 1064501671. The reversal of 1064501661 is 1661054601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1064501661 - 2⁵ = 1064501629 is a prime.

It is a super-2 number, since 2×1064501661² = 2266327572543517842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064501671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347331 + ... + 3347648.

It is an arithmetic number, because the mean of its divisors is an integer number (180764460).

Almost surely, 2^1064501661 is an apocalyptic number.

It is an amenable number.

1064501661 is a deficient number, since it is larger than the sum of its proper divisors (381614019).

1064501661 is an equidigital number, since it uses as much as digits as its factorization.

1064501661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695035.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1064501661 is about 32626.7016567719. The cubic root of 1064501661 is about 1021.0541648603.

The spelling of 1064501661 in words is "one billion, sixty-four million, five hundred one thousand, six hundred sixty-one".