33616356972 has 144 divisors (see below), whose sum is σ = 89693463552. Its totient is φ = 9781200000.

The previous prime is 33616356929. The next prime is 33616357063. The reversal of 33616356972 is 27965361633.

It is a super-2 number, since 2×33616356972² (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 47 ways as a sum of consecutive naturals, for example, 5893722 + ... + 5899422.

Almost surely, 2^33616356972 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 33616356972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44846731776).

33616356972 is an abundant number, since it is smaller than the sum of its proper divisors (56077106580).

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

33616356972 is a wasteful number, since it uses less digits than its factorization.

33616356972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5892 (or 5879 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 51.

The spelling of 33616356972 in words is "thirty-three billion, six hundred sixteen million, three hundred fifty-six thousand, nine hundred seventy-two".