33400213554451 has 16 divisors (see below), whose sum is σ = 33498022811904. Its totient is φ = 33302567522304.

The previous prime is 33400213554353. The next prime is 33400213554457. The reversal of 33400213554451 is 15445531200433.

It is a cyclic number.

It is not a de Polignac number, because 33400213554451 - 2²¹ = 33400211457299 is a prime.

It is a super-2 number, since 2×33400213554451² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33400213554457) 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 15 ways as a sum of consecutive naturals, for example, 1840933086 + ... + 1840951228.

It is an arithmetic number, because the mean of its divisors is an integer number (2093626425744).

Almost surely, 2^{33400213554451} is an apocalyptic number.

33400213554451 is a deficient number, since it is larger than the sum of its proper divisors (97809257453).

33400213554451 is a wasteful number, since it uses less digits than its factorization.

33400213554451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22350.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 33400213554451 its reverse (15445531200433), we get a palindrome (48845744754884).

The spelling of 33400213554451 in words is "thirty-three trillion, four hundred billion, two hundred thirteen million, five hundred fifty-four thousand, four hundred fifty-one".