33666700051 has 2 divisors, whose sum is σ = 33666700052. Its totient is φ = 33666700050.

The previous prime is 33666700037. The next prime is 33666700117. The reversal of 33666700051 is 15000766633.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33666700051 - 2²³ = 33658311443 is a prime.

It is a super-2 number, since 2×33666700051² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33666700021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16833350025 + 16833350026.

It is an arithmetic number, because the mean of its divisors is an integer number (16833350026).

Almost surely, 2^33666700051 is an apocalyptic number.

33666700051 is a deficient number, since it is larger than the sum of its proper divisors (1).

33666700051 is an equidigital number, since it uses as much as digits as its factorization.

33666700051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 33666700051 in words is "thirty-three billion, six hundred sixty-six million, seven hundred thousand, fifty-one".