706155157127261 has 4 divisors (see below), whose sum is σ = 725240431644252. Its totient is φ = 687069882610272.

The previous prime is 706155157127243. The next prime is 706155157127263. The reversal of 706155157127261 is 162721751551607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260174674064761 + 445980483062500 = 16129931^2 + 21118250^2 .

It is a cyclic number.

It is not a de Polignac number, because 706155157127261 - 2¹⁸ = 706155156865117 is a prime.

It is a super-2 number, since 2×706155157127261² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 706155157127197 and 706155157127206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706155157127263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9542637258440 + ... + 9542637258513.

It is an arithmetic number, because the mean of its divisors is an integer number (181310107911063).

Almost surely, 2^{706155157127261} is an apocalyptic number.

It is an amenable number.

706155157127261 is a deficient number, since it is larger than the sum of its proper divisors (19085274516991).

706155157127261 is a wasteful number, since it uses less digits than its factorization.

706155157127261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085274516990.

The product of its (nonzero) digits is 6174000, while the sum is 56.

The spelling of 706155157127261 in words is "seven hundred six trillion, one hundred fifty-five billion, one hundred fifty-seven million, one hundred twenty-seven thousand, two hundred sixty-one".