16720220037 has 8 divisors (see below), whose sum is σ = 22490915904. Its totient is φ = 11048168768.

The previous prime is 16720220017. The next prime is 16720220051. The reversal of 16720220037 is 73002202761.

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 16720220037 - 2¹⁵ = 16720187269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16720219986 and 16720220013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720220017) 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, 24660753 + ... + 24661430.

It is an arithmetic number, because the mean of its divisors is an integer number (2811364488).

Almost surely, 2^16720220037 is an apocalyptic number.

It is an amenable number.

16720220037 is a deficient number, since it is larger than the sum of its proper divisors (5770695867).

16720220037 is a wasteful number, since it uses less digits than its factorization.

16720220037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49322299.

The product of its (nonzero) digits is 7056, while the sum is 30.

Adding to 16720220037 its reverse (73002202761), we get a palindrome (89722422798).

The spelling of 16720220037 in words is "sixteen billion, seven hundred twenty million, two hundred twenty thousand, thirty-seven".