21506465150214 has 16 divisors (see below), whose sum is σ = 46923196691520. Its totient is φ = 6517110651560.

The previous prime is 21506465150173. The next prime is 21506465150221. The reversal of 21506465150214 is 41205156460512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162927766224 + ... + 162927766355.

It is an arithmetic number, because the mean of its divisors is an integer number (2932699793220).

Almost surely, 2^{21506465150214} is an apocalyptic number.

21506465150214 is an abundant number, since it is smaller than the sum of its proper divisors (25416731541306).

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

21506465150214 is a wasteful number, since it uses less digits than its factorization.

21506465150214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325855532595.

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 21506465150214 in words is "twenty-one trillion, five hundred six billion, four hundred sixty-five million, one hundred fifty thousand, two hundred fourteen".