33660405161012 has 96 divisors (see below), whose sum is σ = 69807588915456. Its totient is φ = 13902184857600.

The previous prime is 33660405160981. The next prime is 33660405161029. The reversal of 33660405161012 is 21016150406633.

It is a super-2 number, since 2×33660405161012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57726383 + ... + 58306569.

It is an arithmetic number, because the mean of its divisors is an integer number (727162384536).

Almost surely, 2^{33660405161012} 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 33660405161012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34903794457728).

33660405161012 is an abundant number, since it is smaller than the sum of its proper divisors (36147183754444).

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

33660405161012 is a wasteful number, since it uses less digits than its factorization.

33660405161012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580857 (or 580855 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 33660405161012 its reverse (21016150406633), we get a palindrome (54676555567645).

The spelling of 33660405161012 in words is "thirty-three trillion, six hundred sixty billion, four hundred five million, one hundred sixty-one thousand, twelve".