33145454051 has 4 divisors (see below), whose sum is σ = 33612291504. Its totient is φ = 32678616600.

The previous prime is 33145454009. The next prime is 33145454053. The reversal of 33145454051 is 15045454133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15045454133 = 19 ⋅791866007.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33145454051 is a prime.

It is a super-2 number, since 2×33145454051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33145454053) 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, 233418620 + ... + 233418761.

It is an arithmetic number, because the mean of its divisors is an integer number (8403072876).

Almost surely, 2^33145454051 is an apocalyptic number.

33145454051 is a deficient number, since it is larger than the sum of its proper divisors (466837453).

33145454051 is an equidigital number, since it uses as much as digits as its factorization.

33145454051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466837452.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 33145454051 in words is "thirty-three billion, one hundred forty-five million, four hundred fifty-four thousand, fifty-one".