33555540040 has 64 divisors (see below), whose sum is σ = 83523726720. Its totient is φ = 12030144000.

The previous prime is 33555540017. The next prime is 33555540059. The reversal of 33555540040 is 4004555533.

It is a super-2 number, since 2×33555540040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33555539978 and 33555540005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505821 + ... + 568300.

It is an arithmetic number, because the mean of its divisors is an integer number (1305058230).

Almost surely, 2^33555540040 is an apocalyptic number.

It is an amenable number.

33555540040 is an abundant number, since it is smaller than the sum of its proper divisors (49968186680).

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

33555540040 is a wasteful number, since it uses less digits than its factorization.

33555540040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074214 (or 1074210 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 34.

The spelling of 33555540040 in words is "thirty-three billion, five hundred fifty-five million, five hundred forty thousand, forty".