16215220149 has 32 divisors (see below), whose sum is σ = 22317588480. Its totient is φ = 10466269632.

The previous prime is 16215220139. The next prime is 16215220159. The reversal of 16215220149 is 94102251261.

It is an interprime number because it is at equal distance from previous prime (16215220139) and next prime (16215220159).

It is not a de Polignac number, because 16215220149 - 2⁸ = 16215219893 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 (16215220139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12292912 + ... + 12294230.

It is an arithmetic number, because the mean of its divisors is an integer number (697424640).

Almost surely, 2^16215220149 is an apocalyptic number.

It is an amenable number.

16215220149 is a deficient number, since it is larger than the sum of its proper divisors (6102368331).

16215220149 is a wasteful number, since it uses less digits than its factorization.

16215220149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 16215220149 in words is "sixteen billion, two hundred fifteen million, two hundred twenty thousand, one hundred forty-nine".