20016536502373 has 8 divisors (see below), whose sum is σ = 21877656595200. Its totient is φ = 18231380495040.

The previous prime is 20016536502353. The next prime is 20016536502397. The reversal of 20016536502373 is 37320563561002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20016536502373 - 2²¹ = 20016534405221 is a prime.

It is a super-2 number, since 2×20016536502373² (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 (20016536502353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18991020823 + ... + 18991021876.

It is an arithmetic number, because the mean of its divisors is an integer number (2734707074400).

Almost surely, 2^{20016536502373} is an apocalyptic number.

It is an amenable number.

20016536502373 is a deficient number, since it is larger than the sum of its proper divisors (1861120092827).

20016536502373 is a wasteful number, since it uses less digits than its factorization.

20016536502373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37982042747.

The product of its (nonzero) digits is 680400, while the sum is 43.

The spelling of 20016536502373 in words is "twenty trillion, sixteen billion, five hundred thirty-six million, five hundred two thousand, three hundred seventy-three".