2130004665 has 24 divisors (see below), whose sum is σ = 3699301320. Its totient is φ = 1133758464.

The previous prime is 2130004663. The next prime is 2130004717. The reversal of 2130004665 is 5664000312.

It can be written as a sum of positive squares in 4 ways, for example, as 37491129 + 2092513536 = 6123^2 + 45744^2 .

It is not a de Polignac number, because 2130004665 - 2¹ = 2130004663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2130004661) 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, 23592 + ... + 69401.

It is an arithmetic number, because the mean of its divisors is an integer number (154137555).

Almost surely, 2^2130004665 is an apocalyptic number.

It is an amenable number.

2130004665 is a deficient number, since it is larger than the sum of its proper divisors (1569296655).

2130004665 is a wasteful number, since it uses less digits than its factorization.

2130004665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93513 (or 93510 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2130004665 is about 46151.9735764355. The cubic root of 2130004665 is about 1286.6492905368.

Adding to 2130004665 its reverse (5664000312), we get a palindrome (7794004977).

The spelling of 2130004665 in words is "two billion, one hundred thirty million, four thousand, six hundred sixty-five".