33656630004 has 96 divisors (see below), whose sum is σ = 89057404800. Its totient is φ = 10988893440.

The previous prime is 33656630003. The next prime is 33656630009. The reversal of 33656630004 is 40003665633.

It is a happy number.

It is a super-2 number, since 2×33656630004² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33656630003) 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, 1781134 + ... + 1799930.

It is an arithmetic number, because the mean of its divisors is an integer number (927681300).

Almost surely, 2^33656630004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33656630004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44528702400).

33656630004 is an abundant number, since it is smaller than the sum of its proper divisors (55400774796).

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

33656630004 is a wasteful number, since it uses less digits than its factorization.

33656630004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150 (or 19142 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The spelling of 33656630004 in words is "thirty-three billion, six hundred fifty-six million, six hundred thirty thousand, four".