16406500022551 has 16 divisors (see below), whose sum is σ = 17230620211200. Its totient is φ = 15591911848128.

The previous prime is 16406500022531. The next prime is 16406500022569. The reversal of 16406500022551 is 15522000560461.

It is a cyclic number.

It is not a de Polignac number, because 16406500022551 - 2¹⁵ = 16406499989783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16406500022551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16406500022501) 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, 986166 + ... + 5812531.

It is an arithmetic number, because the mean of its divisors is an integer number (1076913763200).

Almost surely, 2^{16406500022551} is an apocalyptic number.

16406500022551 is a deficient number, since it is larger than the sum of its proper divisors (824120188649).

16406500022551 is a wasteful number, since it uses less digits than its factorization.

16406500022551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6799398.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 16406500022551 in words is "sixteen trillion, four hundred six billion, five hundred million, twenty-two thousand, five hundred fifty-one".