20153033244 has 36 divisors (see below), whose sum is σ = 51007191144. Its totient is φ = 6709132512.

The previous prime is 20153033239. The next prime is 20153033261. The reversal of 20153033244 is 44233035102.

20153033244 is a `hidden beast` number, since 20 + 15 + 303 + 324 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20153033244² (a number of 21 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 11 ways as a sum of consecutive naturals, for example, 327327 + ... + 383990.

Almost surely, 2^20153033244 is an apocalyptic number.

It is an amenable number.

20153033244 is an abundant number, since it is smaller than the sum of its proper divisors (30854157900).

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

20153033244 is a wasteful number, since it uses less digits than its factorization.

20153033244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712114 (or 712109 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20153033244 its reverse (44233035102), we get a palindrome (64386068346).

The spelling of 20153033244 in words is "twenty billion, one hundred fifty-three million, thirty-three thousand, two hundred forty-four".