646153023261214 has 24 divisors (see below), whose sum is σ = 1127659601424888. Its totient is φ = 276876423598320.

The previous prime is 646153023261197. The next prime is 646153023261227. The reversal of 646153023261214 is 412162320351646.

It is a super-3 number, since 3×646153023261214³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550609164 + ... + 551781439.

It is an arithmetic number, because the mean of its divisors is an integer number (46985816726037).

Almost surely, 2^{646153023261214} is an apocalyptic number.

646153023261214 is a deficient number, since it is larger than the sum of its proper divisors (481506578163674).

646153023261214 is a wasteful number, since it uses less digits than its factorization.

646153023261214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102396600 (or 1102396593 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 646153023261214 in words is "six hundred forty-six trillion, one hundred fifty-three billion, twenty-three million, two hundred sixty-one thousand, two hundred fourteen".