16520023102 has 32 divisors (see below), whose sum is σ = 28252260864. Its totient is φ = 7171375200.

The previous prime is 16520023049. The next prime is 16520023123. The reversal of 16520023102 is 20132002561.

It is a super-2 number, since 2×16520023102² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302152 + ... + 352612.

It is an arithmetic number, because the mean of its divisors is an integer number (882883152).

Almost surely, 2^16520023102 is an apocalyptic number.

16520023102 is a deficient number, since it is larger than the sum of its proper divisors (11732237762).

16520023102 is a wasteful number, since it uses less digits than its factorization.

16520023102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51144.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 16520023102 its reverse (20132002561), we get a palindrome (36652025663).

The spelling of 16520023102 in words is "sixteen billion, five hundred twenty million, twenty-three thousand, one hundred two".