33530209990 has 16 divisors (see below), whose sum is σ = 60518837952. Its totient is φ = 13375537344.

The previous prime is 33530209919. The next prime is 33530210017. The reversal of 33530209990 is 9990203533.

It is a super-2 number, since 2×33530209990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4564479 + ... + 4571818.

It is an arithmetic number, because the mean of its divisors is an integer number (3782427372).

Almost surely, 2^33530209990 is an apocalyptic number.

33530209990 is a deficient number, since it is larger than the sum of its proper divisors (26988627962).

33530209990 is a wasteful number, since it uses less digits than its factorization.

33530209990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9136671.

The product of its (nonzero) digits is 196830, while the sum is 43.

The spelling of 33530209990 in words is "thirty-three billion, five hundred thirty million, two hundred nine thousand, nine hundred ninety".