215506663152 has 80 divisors (see below), whose sum is σ = 621461140608. Its totient is φ = 63786320640.

The previous prime is 215506663139. The next prime is 215506663153. The reversal of 215506663152 is 251366605512.

215506663152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215506663153) 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, 4723303 + ... + 4768710.

Almost surely, 2^215506663152 is an apocalyptic number.

215506663152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215506663152 is an abundant number, since it is smaller than the sum of its proper divisors (405954477456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215506663152 is a wasteful number, since it uses less digits than its factorization.

215506663152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9492078 (or 9492072 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 215506663152 in words is "two hundred fifteen billion, five hundred six million, six hundred sixty-three thousand, one hundred fifty-two".