2651666450 has 48 divisors (see below), whose sum is σ = 4976493984. Its totient is φ = 1051171200.

The previous prime is 2651666449. The next prime is 2651666461. The reversal of 2651666450 is 546661562.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2651666398 and 2651666407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3484070 + ... + 3484830.

It is an arithmetic number, because the mean of its divisors is an integer number (103676958).

Almost surely, 2^2651666450 is an apocalyptic number.

2651666450 is a deficient number, since it is larger than the sum of its proper divisors (2324827534).

2651666450 is a wasteful number, since it uses less digits than its factorization.

2651666450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2651666450 is about 51494.3341543514. The cubic root of 2651666450 is about 1384.1175157351.

The spelling of 2651666450 in words is "two billion, six hundred fifty-one million, six hundred sixty-six thousand, four hundred fifty".