1364361661 has 8 divisors (see below), whose sum is σ = 1482316920. Its totient is φ = 1248264192.

The previous prime is 1364361623. The next prime is 1364361683. The reversal of 1364361661 is 1661634631.

It can be written as a sum of positive squares in 4 ways, for example, as 2013561 + 1362348100 = 1419^2 + 36910^2 .

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 1364361661 - 2⁷ = 1364361533 is a prime.

It is a super-2 number, since 2×1364361661² = 3722965484013357842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1364361661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1364361461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462916 + ... + 465853.

It is an arithmetic number, because the mean of its divisors is an integer number (185289615).

Almost surely, 2^1364361661 is an apocalyptic number.

It is an amenable number.

1364361661 is a deficient number, since it is larger than the sum of its proper divisors (117955259).

1364361661 is a wasteful number, since it uses less digits than its factorization.

1364361661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928895.

The product of its digits is 46656, while the sum is 37.

The square root of 1364361661 is about 36937.2665610221. The cubic root of 1364361661 is about 1109.1148046432.

The spelling of 1364361661 in words is "one billion, three hundred sixty-four million, three hundred sixty-one thousand, six hundred sixty-one".