33616940394 has 32 divisors (see below), whose sum is σ = 71893676736. Its totient is φ = 10442067200.

The previous prime is 33616940387. The next prime is 33616940417. The reversal of 33616940394 is 49304961633.

It is a super-2 number, since 2×33616940394² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621272 + ... + 1641875.

It is an arithmetic number, because the mean of its divisors is an integer number (2246677398).

Almost surely, 2^33616940394 is an apocalyptic number.

33616940394 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

33616940394 is an abundant number, since it is smaller than the sum of its proper divisors (38276736342).

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

33616940394 is a wasteful number, since it uses less digits than its factorization.

33616940394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263270.

The product of its (nonzero) digits is 1259712, while the sum is 48.

The spelling of 33616940394 in words is "thirty-three billion, six hundred sixteen million, nine hundred forty thousand, three hundred ninety-four".