2451651066 has 48 divisors (see below), whose sum is σ = 5371165800. Its totient is φ = 808151040.

The previous prime is 2451651023. The next prime is 2451651067. The reversal of 2451651066 is 6601561542.

It can be written as a sum of positive squares in 4 ways, for example, as 1550390625 + 901260441 = 39375^2 + 30021^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2451651066.

It is not an unprimeable number, because it can be changed into a prime (2451651067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644466 + ... + 648258.

Almost surely, 2^2451651066 is an apocalyptic number.

2451651066 is an abundant number, since it is smaller than the sum of its proper divisors (2919514734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451651066 is a wasteful number, since it uses less digits than its factorization.

2451651066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2451651066 is about 49514.1501593231. The cubic root of 2451651066 is about 1348.4025120452.

The spelling of 2451651066 in words is "two billion, four hundred fifty-one million, six hundred fifty-one thousand, sixty-six".