33161220426 has 16 divisors (see below), whose sum is σ = 66324276000. Its totient is φ = 11053434288.

The previous prime is 33161220403. The next prime is 33161220451. The reversal of 33161220426 is 62402216133.

It is a junction number, because it is equal to n+sod(n) for n = 33161220393 and 33161220402.

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, 304300 + ... + 398648.

It is an arithmetic number, because the mean of its divisors is an integer number (4145267250).

Almost surely, 2^33161220426 is an apocalyptic number.

33161220426 is an abundant number, since it is smaller than the sum of its proper divisors (33163055574).

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

33161220426 is a wasteful number, since it uses less digits than its factorization.

33161220426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152933.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 33161220426 its reverse (62402216133), we get a palindrome (95563436559).

The spelling of 33161220426 in words is "thirty-three billion, one hundred sixty-one million, two hundred twenty thousand, four hundred twenty-six".