232011554661 has 10 divisors (see below), whose sum is σ = 346585162022. Its totient is φ = 154674369720.

The previous prime is 232011554651. The next prime is 232011554701. The reversal of 232011554661 is 166455110232.

232011554661 is a `hidden beast` number, since 2 + 32 + 0 + 11 + 554 + 6 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 225216684900 + 6794869761 = 474570^2 + 82431^2 .

It is not a de Polignac number, because 232011554661 - 2¹⁰ = 232011553637 is a prime.

It is a super-2 number, since 2×232011554661² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232011554651) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1432170010 + ... + 1432170171.

Almost surely, 2^232011554661 is an apocalyptic number.

It is an amenable number.

232011554661 is a deficient number, since it is larger than the sum of its proper divisors (114573607361).

232011554661 is an equidigital number, since it uses as much as digits as its factorization.

232011554661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864340193 (or 2864340184 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 232011554661 its reverse (166455110232), we get a palindrome (398466664893).

The spelling of 232011554661 in words is "two hundred thirty-two billion, eleven million, five hundred fifty-four thousand, six hundred sixty-one".