33420161651 has 8 divisors (see below), whose sum is σ = 33458817744. Its totient is φ = 33381531520.

The previous prime is 33420161627. The next prime is 33420161669. The reversal of 33420161651 is 15616102433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33420161651 - 2¹⁴ = 33420145267 is a prime.

It is a super-2 number, since 2×33420161651² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33420131651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3643511 + ... + 3652671.

It is an arithmetic number, because the mean of its divisors is an integer number (4182352218).

Almost surely, 2^33420161651 is an apocalyptic number.

33420161651 is a deficient number, since it is larger than the sum of its proper divisors (38656093).

33420161651 is a wasteful number, since it uses less digits than its factorization.

33420161651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 33420161651 in words is "thirty-three billion, four hundred twenty million, one hundred sixty-one thousand, six hundred fifty-one".