20006737506031 has 4 divisors (see below), whose sum is σ = 20134168955272. Its totient is φ = 19879306056792.

The previous prime is 20006737506017. The next prime is 20006737506043. The reversal of 20006737506031 is 13060573760002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20006737506031 - 2⁵ = 20006737505999 is a prime.

It is a super-2 number, since 2×20006737506031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006737536031) 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, 63715724385 + ... + 63715724698.

It is an arithmetic number, because the mean of its divisors is an integer number (5033542238818).

Almost surely, 2^{20006737506031} is an apocalyptic number.

20006737506031 is a deficient number, since it is larger than the sum of its proper divisors (127431449241).

20006737506031 is a wasteful number, since it uses less digits than its factorization.

20006737506031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127431449240.

The product of its (nonzero) digits is 158760, while the sum is 40.

The spelling of 20006737506031 in words is "twenty trillion, six billion, seven hundred thirty-seven million, five hundred six thousand, thirty-one".