2070661251 has 8 divisors (see below), whose sum is σ = 2923286544. Its totient is φ = 1299238400.

The previous prime is 2070661247. The next prime is 2070661261. The reversal of 2070661251 is 1521660702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2070661251 - 2² = 2070661247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2070661261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20300550 + ... + 20300651.

It is an arithmetic number, because the mean of its divisors is an integer number (365410818).

Almost surely, 2^2070661251 is an apocalyptic number.

2070661251 is a deficient number, since it is larger than the sum of its proper divisors (852625293).

2070661251 is a wasteful number, since it uses less digits than its factorization.

2070661251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40601221.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2070661251 is about 45504.5190173460. The cubic root of 2070661251 is about 1274.5875894922.

The spelling of 2070661251 in words is "two billion, seventy million, six hundred sixty-one thousand, two hundred fifty-one".