33940397016 has 24 divisors (see below), whose sum is σ = 91921908780. Its totient is φ = 11313465648.

The previous prime is 33940397003. The next prime is 33940397017. The reversal of 33940397016 is 61079304933.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33940397017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 235697130 + ... + 235697273.

Almost surely, 2^33940397016 is an apocalyptic number.

33940397016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

33940397016 is an abundant number, since it is smaller than the sum of its proper divisors (57981511764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33940397016 is a wasteful number, since it uses less digits than its factorization.

33940397016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471394415 (or 471394408 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The spelling of 33940397016 in words is "thirty-three billion, nine hundred forty million, three hundred ninety-seven thousand, sixteen".