20137340537655 has 16 divisors (see below), whose sum is σ = 35148812575104. Its totient is φ = 9763559048480.

The previous prime is 20137340537653. The next prime is 20137340537669. The reversal of 20137340537655 is 55673504373102.

It is not a de Polignac number, because 20137340537655 - 2¹ = 20137340537653 is a prime.

It is a super-3 number, since 3×20137340537655³ (a number of 41 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20137340537598 and 20137340537607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20137340537653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61022243889 + ... + 61022244218.

It is an arithmetic number, because the mean of its divisors is an integer number (2196800785944).

Almost surely, 2^{20137340537655} is an apocalyptic number.

20137340537655 is a deficient number, since it is larger than the sum of its proper divisors (15011472037449).

20137340537655 is a wasteful number, since it uses less digits than its factorization.

20137340537655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122044488126.

The product of its (nonzero) digits is 7938000, while the sum is 51.

The spelling of 20137340537655 in words is "twenty trillion, one hundred thirty-seven billion, three hundred forty million, five hundred thirty-seven thousand, six hundred fifty-five".