215343610564 has 48 divisors (see below), whose sum is σ = 386133785856. Its totient is φ = 105049555200.

The previous prime is 215343610561. The next prime is 215343610583. The reversal of 215343610564 is 465016343512.

215343610564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×215343610564² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215343610561) 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 15 ways as a sum of consecutive naturals, for example, 71233557 + ... + 71236579.

It is an arithmetic number, because the mean of its divisors is an integer number (8044453872).

Almost surely, 2^215343610564 is an apocalyptic number.

It is an amenable number.

215343610564 is a deficient number, since it is larger than the sum of its proper divisors (170790175292).

215343610564 is a wasteful number, since it uses less digits than its factorization.

215343610564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356 (or 5354 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 215343610564 in words is "two hundred fifteen billion, three hundred forty-three million, six hundred ten thousand, five hundred sixty-four".