33400033156 has 48 divisors (see below), whose sum is σ = 67493744640. Its totient is φ = 14166421920.

The previous prime is 33400033153. The next prime is 33400033157. The reversal of 33400033156 is 65133000433.

It is a super-2 number, since 2×33400033156² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (33400033153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041741 + ... + 1073323.

It is an arithmetic number, because the mean of its divisors is an integer number (1406119680).

Almost surely, 2^33400033156 is an apocalyptic number.

It is an amenable number.

33400033156 is an abundant number, since it is smaller than the sum of its proper divisors (34093711484).

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

33400033156 is a wasteful number, since it uses less digits than its factorization.

33400033156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31984 (or 31982 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 33400033156 its reverse (65133000433), we get a palindrome (98533033589).

The spelling of 33400033156 in words is "thirty-three billion, four hundred million, thirty-three thousand, one hundred fifty-six".