2251216545355 has 32 divisors (see below), whose sum is σ = 2791718092800. Its totient is φ = 1741418497152.

The previous prime is 2251216545337. The next prime is 2251216545367. The reversal of 2251216545355 is 5535456121522.

It is a cyclic number.

It is not a de Polignac number, because 2251216545355 - 2⁵ = 2251216545323 is a prime.

It is a super-3 number, since 3×2251216545355³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55049806 + ... + 55090684.

It is an arithmetic number, because the mean of its divisors is an integer number (87241190400).

Almost surely, 2^{2251216545355} is an apocalyptic number.

2251216545355 is a deficient number, since it is larger than the sum of its proper divisors (540501547445).

2251216545355 is a wasteful number, since it uses less digits than its factorization.

2251216545355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42763.

The product of its digits is 1800000, while the sum is 46.

The spelling of 2251216545355 in words is "two trillion, two hundred fifty-one billion, two hundred sixteen million, five hundred forty-five thousand, three hundred fifty-five".