36661364461 has 4 divisors (see below), whose sum is σ = 37555544124. Its totient is φ = 35767184800.

The previous prime is 36661364423. The next prime is 36661364471. The reversal of 36661364461 is 16446316663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16446316663 = 7 ⋅2349473809.

It can be written as a sum of positive squares in 2 ways, for example, as 15116702500 + 21544661961 = 122950^2 + 146781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36661364461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36661364401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447089770 + ... + 447089851.

It is an arithmetic number, because the mean of its divisors is an integer number (9388886031).

Almost surely, 2^36661364461 is an apocalyptic number.

It is an amenable number.

36661364461 is a deficient number, since it is larger than the sum of its proper divisors (894179663).

36661364461 is an equidigital number, since it uses as much as digits as its factorization.

36661364461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894179662.

The product of its digits is 1119744, while the sum is 46.

The spelling of 36661364461 in words is "thirty-six billion, six hundred sixty-one million, three hundred sixty-four thousand, four hundred sixty-one".