20034055156 has 12 divisors (see below), whose sum is σ = 35235776800. Its totient is φ = 9966690360.

The previous prime is 20034055141. The next prime is 20034055157. The reversal of 20034055156 is 65155043002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034055157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12583410 + ... + 12585001.

Almost surely, 2^20034055156 is an apocalyptic number.

It is an amenable number.

20034055156 is a deficient number, since it is larger than the sum of its proper divisors (15201721644).

20034055156 is a wasteful number, since it uses less digits than its factorization.

20034055156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25168614 (or 25168612 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 20034055156 its reverse (65155043002), we get a palindrome (85189098158).

The spelling of 20034055156 in words is "twenty billion, thirty-four million, fifty-five thousand, one hundred fifty-six".