23335362987561 has 45 divisors (see below), whose sum is σ = 37031320638741. Its totient is φ = 14641332640128.

The previous prime is 23335362987509. The next prime is 23335362987571. The reversal of 23335362987561 is 16578926353332.

The square root of 23335362987561 is 4830669.

It is a perfect power (a square), and thus also a powerful number.

23335362987561 is a `hidden beast` number, since 2 + 3 + 3 + 3 + 5 + 3 + 62 + 9 + 8 + 7 + 561 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1255701777561 + 22079661210000 = 1120581^2 + 4698900^2 .

It is not a de Polignac number, because 23335362987561 - 2⁹ = 23335362987049 is a prime.

It is a super-2 number, since 2×23335362987561² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23335362987571) 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 44 ways as a sum of consecutive naturals, for example, 739076571 + ... + 739108143.

Almost surely, 2^{23335362987561} is an apocalyptic number.

23335362987561 is the 4830669-th square number.

23335362987561 is the 2415335-th centered octagonal number.

It is an amenable number.

23335362987561 is a deficient number, since it is larger than the sum of its proper divisors (13695957651180).

23335362987561 is an frugal number, since it uses more digits than its factorization.

23335362987561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63192 (or 31593 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 63.

The spelling of 23335362987561 in words is "twenty-three trillion, three hundred thirty-five billion, three hundred sixty-two million, nine hundred eighty-seven thousand, five hundred sixty-one".