16434645725770 has 128 divisors (see below), whose sum is σ = 31191073056000. Its totient is φ = 6226854746112.

The previous prime is 16434645725767. The next prime is 16434645725777. The reversal of 16434645725770 is 7752754643461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16434645725699 and 16434645725708.

It is not an unprimeable number, because it can be changed into a prime (16434645725777) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8432346756 + ... + 8432348704.

It is an arithmetic number, because the mean of its divisors is an integer number (243680258250).

Almost surely, 2^{16434645725770} is an apocalyptic number.

16434645725770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16434645725770 is a deficient number, since it is larger than the sum of its proper divisors (14756427330230).

16434645725770 is a wasteful number, since it uses less digits than its factorization.

16434645725770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512.

The product of its (nonzero) digits is 118540800, while the sum is 61.

The spelling of 16434645725770 in words is "sixteen trillion, four hundred thirty-four billion, six hundred forty-five million, seven hundred twenty-five thousand, seven hundred seventy".