33661460351 has 4 divisors (see below), whose sum is σ = 35641546272. Its totient is φ = 31681374432.

The previous prime is 33661460323. The next prime is 33661460407. The reversal of 33661460351 is 15306416633.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33661460351 is a prime.

It is a super-2 number, since 2×33661460351² (a number of 22 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 (33661460851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990042935 + ... + 990042968.

It is an arithmetic number, because the mean of its divisors is an integer number (8910386568).

Almost surely, 2^33661460351 is an apocalyptic number.

33661460351 is a deficient number, since it is larger than the sum of its proper divisors (1980085921).

33661460351 is a wasteful number, since it uses less digits than its factorization.

33661460351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980085920.

The product of its (nonzero) digits is 116640, while the sum is 38.

Adding to 33661460351 its reverse (15306416633), we get a palindrome (48967876984).

The spelling of 33661460351 in words is "thirty-three billion, six hundred sixty-one million, four hundred sixty thousand, three hundred fifty-one".