16020941648 has 20 divisors (see below), whose sum is σ = 31042576020. Its totient is φ = 8009954304.

The previous prime is 16020941623. The next prime is 16020941687. The reversal of 16020941648 is 84614902061.

It can be written as a sum of positive squares in 2 ways, for example, as 7756677184 + 8264264464 = 88072^2 + 90908^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394886 + ... + 433562.

It is an arithmetic number, because the mean of its divisors is an integer number (1552128801).

Almost surely, 2^16020941648 is an apocalyptic number.

It is an amenable number.

16020941648 is a deficient number, since it is larger than the sum of its proper divisors (15021634372).

16020941648 is a wasteful number, since it uses less digits than its factorization.

16020941648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64574 (or 64568 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 16020941648 in words is "sixteen billion, twenty million, nine hundred forty-one thousand, six hundred forty-eight".