16201945642 has 32 divisors (see below), whose sum is σ = 25974001728. Its totient is φ = 7553185536.

The previous prime is 16201945621. The next prime is 16201945667. The reversal of 16201945642 is 24654910261.

16201945642 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16201945595 and 16201945604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847913 + ... + 1856659.

It is an arithmetic number, because the mean of its divisors is an integer number (811687554).

Almost surely, 2^16201945642 is an apocalyptic number.

16201945642 is a deficient number, since it is larger than the sum of its proper divisors (9772056086).

16201945642 is a wasteful number, since it uses less digits than its factorization.

16201945642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 16201945642 in words is "sixteen billion, two hundred one million, nine hundred forty-five thousand, six hundred forty-two".