33775720240020 has 48 divisors (see below), whose sum is σ = 103169472735168. Its totient is φ = 8188053391360.

The previous prime is 33775720240001. The next prime is 33775720240039. The reversal of 33775720240020 is 2004202757733.

It is an interprime number because it is at equal distance from previous prime (33775720240001) and next prime (33775720240039).

It is a super-2 number, since 2×33775720240020² (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 15 ways as a sum of consecutive naturals, for example, 25587666189 + ... + 25587667508.

It is an arithmetic number, because the mean of its divisors is an integer number (2149364015316).

Almost surely, 2^{33775720240020} is an apocalyptic number.

33775720240020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33775720240020 is an abundant number, since it is smaller than the sum of its proper divisors (69393752495148).

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

33775720240020 is a wasteful number, since it uses less digits than its factorization.

33775720240020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51175333720 (or 51175333718 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 42.

Adding to 33775720240020 its reverse (2004202757733), we get a palindrome (35779922997753).

The spelling of 33775720240020 in words is "thirty-three trillion, seven hundred seventy-five billion, seven hundred twenty million, two hundred forty thousand, twenty".