2216156425 has 24 divisors (see below), whose sum is σ = 3156601536. Its totient is φ = 1511912640.

The previous prime is 2216156399. The next prime is 2216156461. The reversal of 2216156425 is 5246516122.

It is a de Polignac number, because none of the positive numbers 2^k-2216156425 is a prime.

It is a super-2 number, since 2×2216156425² = 9822698600137561250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334 + ... + 66616.

It is an arithmetic number, because the mean of its divisors is an integer number (131525064).

Almost surely, 2^2216156425 is an apocalyptic number.

2216156425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2216156425 is a deficient number, since it is larger than the sum of its proper divisors (940445111).

2216156425 is a wasteful number, since it uses less digits than its factorization.

2216156425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64497 (or 64492 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2216156425 is about 47076.0706197958. The cubic root of 2216156425 is about 1303.7674587610.

The spelling of 2216156425 in words is "two billion, two hundred sixteen million, one hundred fifty-six thousand, four hundred twenty-five".