215056602654 has 16 divisors (see below), whose sum is σ = 430198285440. Its totient is φ = 71671354200.

The previous prime is 215056602641. The next prime is 215056602661. The reversal of 215056602654 is 456206650512.

It is a happy number.

215056602654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3512122 + ... + 3572829.

It is an arithmetic number, because the mean of its divisors is an integer number (26887392840).

Almost surely, 2^215056602654 is an apocalyptic number.

215056602654 is an abundant number, since it is smaller than the sum of its proper divisors (215141682786).

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

215056602654 is a wasteful number, since it uses less digits than its factorization.

215056602654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7090015.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 215056602654 in words is "two hundred fifteen billion, fifty-six million, six hundred two thousand, six hundred fifty-four".