651545545154 has 16 divisors (see below), whose sum is σ = 1117376582976. Its totient is φ = 279123464400.

The previous prime is 651545545153. The next prime is 651545545159. The reversal of 651545545154 is 451545545156.

It is a happy number.

It is a super-3 number, since 3×651545545154³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (651545545153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9158357 + ... + 9229224.

It is an arithmetic number, because the mean of its divisors is an integer number (69836036436).

Almost surely, 2^651545545154 is an apocalyptic number.

651545545154 is a deficient number, since it is larger than the sum of its proper divisors (465831037822).

651545545154 is a wasteful number, since it uses less digits than its factorization.

651545545154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18390121.

The product of its digits is 6000000, while the sum is 50.

The spelling of 651545545154 in words is "six hundred fifty-one billion, five hundred forty-five million, five hundred forty-five thousand, one hundred fifty-four".