1205750700061 has 2 divisors, whose sum is σ = 1205750700062. Its totient is φ = 1205750700060.

The previous prime is 1205750700053. The next prime is 1205750700103. The reversal of 1205750700061 is 1600070575021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971024984836 + 234725715225 = 985406^2 + 484485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205750700061 - 2³ = 1205750700053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205750709061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602875350030 + 602875350031.

It is an arithmetic number, because the mean of its divisors is an integer number (602875350031).

Almost surely, 2^{1205750700061} is an apocalyptic number.

It is an amenable number.

1205750700061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205750700061 is an equidigital number, since it uses as much as digits as its factorization.

1205750700061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 1205750700061 in words is "one trillion, two hundred five billion, seven hundred fifty million, seven hundred thousand, sixty-one".