215346706653 has 16 divisors (see below), whose sum is σ = 309236235840. Its totient is φ = 132512285184.

The previous prime is 215346706649. The next prime is 215346706669. The reversal of 215346706653 is 356607643512.

It is not a de Polignac number, because 215346706653 - 2² = 215346706649 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215346706153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441613 + ... + 791021.

It is an arithmetic number, because the mean of its divisors is an integer number (19327264740).

Almost surely, 2^215346706653 is an apocalyptic number.

It is an amenable number.

215346706653 is a deficient number, since it is larger than the sum of its proper divisors (93889529187).

215346706653 is a wasteful number, since it uses less digits than its factorization.

215346706653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365228.

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 215346706653 in words is "two hundred fifteen billion, three hundred forty-six million, seven hundred six thousand, six hundred fifty-three".