16154155801 has 27 divisors (see below), whose sum is σ = 19146878037. Its totient is φ = 13589425080.

The previous prime is 16154155783. The next prime is 16154155807. The reversal of 16154155801 is 10855145161.

The square root of 16154155801 is 127099.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 16154155801 - 2⁹ = 16154155289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16154155807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 59609296 + ... + 59609566.

It is an arithmetic number, because the mean of its divisors is an integer number (709143631).

Almost surely, 2^16154155801 is an apocalyptic number.

16154155801 is the 127099-th square number.

16154155801 is the 63550-th centered octagonal number.

It is an amenable number.

16154155801 is a deficient number, since it is larger than the sum of its proper divisors (2992722236).

16154155801 is an frugal number, since it uses more digits than its factorization.

16154155801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 37.

The spelling of 16154155801 in words is "sixteen billion, one hundred fifty-four million, one hundred fifty-five thousand, eight hundred one".