33890661330 has 64 divisors (see below), whose sum is σ = 82151245440. Its totient is φ = 8947459584.

The previous prime is 33890661319. The next prime is 33890661331. The reversal of 33890661330 is 3316609833.

It is a super-2 number, since 2×33890661330² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33890661331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1546812 + ... + 1568568.

It is an arithmetic number, because the mean of its divisors is an integer number (1283613210).

Almost surely, 2^33890661330 is an apocalyptic number.

33890661330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33890661330 is an abundant number, since it is smaller than the sum of its proper divisors (48260584110).

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

33890661330 is a wasteful number, since it uses less digits than its factorization.

33890661330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22283.

The product of its (nonzero) digits is 209952, while the sum is 42.

The spelling of 33890661330 in words is "thirty-three billion, eight hundred ninety million, six hundred sixty-one thousand, three hundred thirty".