16506145654 has 16 divisors (see below), whose sum is σ = 24813550368. Its totient is φ = 8234978752.

The previous prime is 16506145637. The next prime is 16506145681. The reversal of 16506145654 is 45654160561.

It is a self number, because there is not a number n which added to its sum of digits gives 16506145654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320679 + ... + 3325645.

It is an arithmetic number, because the mean of its divisors is an integer number (1550846898).

Almost surely, 2^16506145654 is an apocalyptic number.

16506145654 is a deficient number, since it is larger than the sum of its proper divisors (8307404714).

16506145654 is a wasteful number, since it uses less digits than its factorization.

16506145654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8279.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 16506145654 in words is "sixteen billion, five hundred six million, one hundred forty-five thousand, six hundred fifty-four".