33661214505240 has 64 divisors (see below), whose sum is σ = 115409878306560. Its totient is φ = 7693991886720.

The previous prime is 33661214505239. The next prime is 33661214505307. The reversal of 33661214505240 is 4250541216633.

It is a super-2 number, since 2×33661214505240² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 33661214505192 and 33661214505201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20036436366 + ... + 20036438045.

It is an arithmetic number, because the mean of its divisors is an integer number (1803279348540).

Almost surely, 2^{33661214505240} is an apocalyptic number.

33661214505240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33661214505240 is an abundant number, since it is smaller than the sum of its proper divisors (81748663801320).

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

33661214505240 is a wasteful number, since it uses less digits than its factorization.

33661214505240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40072874432 (or 40072874428 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 33661214505240 in words is "thirty-three trillion, six hundred sixty-one billion, two hundred fourteen million, five hundred five thousand, two hundred forty".