16545715401 has 16 divisors (see below), whose sum is σ = 22241514240. Its totient is φ = 10940289360.

The previous prime is 16545715399. The next prime is 16545715423. The reversal of 16545715401 is 10451754561.

It is not a de Polignac number, because 16545715401 - 2¹ = 16545715399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16545715401.

It is not an unprimeable number, because it can be changed into a prime (16545715471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 776670 + ... + 797688.

It is an arithmetic number, because the mean of its divisors is an integer number (1390094640).

Almost surely, 2^16545715401 is an apocalyptic number.

It is an amenable number.

16545715401 is a deficient number, since it is larger than the sum of its proper divisors (5695798839).

16545715401 is a wasteful number, since it uses less digits than its factorization.

16545715401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 16545715401 in words is "sixteen billion, five hundred forty-five million, seven hundred fifteen thousand, four hundred one".