2661301402 has 16 divisors (see below), whose sum is σ = 4069197000. Its totient is φ = 1304926272.

The previous prime is 2661301399. The next prime is 2661301403. The reversal of 2661301402 is 2041031662.

It can be written as a sum of positive squares in 4 ways, for example, as 2374710361 + 286591041 = 48731^2 + 16929^2 .

It is not an unprimeable number, because it can be changed into a prime (2661301403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286828 + ... + 295960.

Almost surely, 2^2661301402 is an apocalyptic number.

2661301402 is a deficient number, since it is larger than the sum of its proper divisors (1407895598).

2661301402 is a wasteful number, since it uses less digits than its factorization.

2661301402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11937.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2661301402 is about 51587.8028413694. The cubic root of 2661301402 is about 1385.7919075933.

The spelling of 2661301402 in words is "two billion, six hundred sixty-one million, three hundred one thousand, four hundred two".