2016623997 has 48 divisors (see below), whose sum is σ = 3201689088. Its totient is φ = 1217617920.

The previous prime is 2016623993. The next prime is 2016624047. The reversal of 2016623997 is 7993266102.

It is a happy number.

2016623997 is a `hidden beast` number, since 2 + 0 + 16 + 623 + 9 + 9 + 7 = 666.

It is not a de Polignac number, because 2016623997 - 2² = 2016623993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016623993) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 914298 + ... + 916500.

It is an arithmetic number, because the mean of its divisors is an integer number (66701856).

Almost surely, 2^2016623997 is an apocalyptic number.

It is an amenable number.

2016623997 is a deficient number, since it is larger than the sum of its proper divisors (1185065091).

2016623997 is a wasteful number, since it uses less digits than its factorization.

2016623997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2447 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 2016623997 is about 44906.8368625536. The cubic root of 2016623997 is about 1263.4022430386.

The spelling of 2016623997 in words is "two billion, sixteen million, six hundred twenty-three thousand, nine hundred ninety-seven".