70006151550721 has 2 divisors, whose sum is σ = 70006151550722. Its totient is φ = 70006151550720.

The previous prime is 70006151550697. The next prime is 70006151550743. The reversal of 70006151550721 is 12705515160007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69396563811600 + 609587739121 = 8330460^2 + 780761^2 .

It is a cyclic number.

It is not a de Polignac number, because 70006151550721 - 2³⁵ = 69971791812353 is a prime.

It is a super-2 number, since 2×70006151550721² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70006151554721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003075775360 + 35003075775361.

It is an arithmetic number, because the mean of its divisors is an integer number (35003075775361).

Almost surely, 2^{70006151550721} is an apocalyptic number.

It is an amenable number.

70006151550721 is a deficient number, since it is larger than the sum of its proper divisors (1).

70006151550721 is an equidigital number, since it uses as much as digits as its factorization.

70006151550721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 70006151550721 in words is "seventy trillion, six billion, one hundred fifty-one million, five hundred fifty thousand, seven hundred twenty-one".