20607121032437 has 16 divisors (see below), whose sum is σ = 21874944540672. Its totient is φ = 19373187057840.

The previous prime is 20607121032419. The next prime is 20607121032439. The reversal of 20607121032437 is 73423012170602.

It is a cyclic number.

It is not a de Polignac number, because 20607121032437 - 2⁸ = 20607121032181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20607121032437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20607121032439) 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, 32653889 + ... + 33278982.

It is an arithmetic number, because the mean of its divisors is an integer number (1367184033792).

Almost surely, 2^{20607121032437} is an apocalyptic number.

It is an amenable number.

20607121032437 is a deficient number, since it is larger than the sum of its proper divisors (1267823508235).

20607121032437 is a wasteful number, since it uses less digits than its factorization.

20607121032437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65933128.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 20607121032437 in words is "twenty trillion, six hundred seven billion, one hundred twenty-one million, thirty-two thousand, four hundred thirty-seven".