16154500536551 has 4 divisors (see below), whose sum is σ = 17397154423992. Its totient is φ = 14911846649112.

The previous prime is 16154500536539. The next prime is 16154500536553. The reversal of 16154500536551 is 15563500545161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16154500536551 - 2¹⁰ = 16154500535527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16154500536496 and 16154500536505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16154500536553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621326943701 + ... + 621326943726.

It is an arithmetic number, because the mean of its divisors is an integer number (4349288605998).

Almost surely, 2^{16154500536551} is an apocalyptic number.

16154500536551 is a deficient number, since it is larger than the sum of its proper divisors (1242653887441).

16154500536551 is a wasteful number, since it uses less digits than its factorization.

16154500536551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242653887440.

The product of its (nonzero) digits is 1350000, while the sum is 47.

The spelling of 16154500536551 in words is "sixteen trillion, one hundred fifty-four billion, five hundred million, five hundred thirty-six thousand, five hundred fifty-one".