70019457141661 has 2 divisors, whose sum is σ = 70019457141662. Its totient is φ = 70019457141660.

The previous prime is 70019457141607. The next prime is 70019457141671. The reversal of 70019457141661 is 16614175491007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53389413921636 + 16630043220025 = 7306806^2 + 4077995^2 .

It is an emirp because it is prime and its reverse (16614175491007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70019457141661 - 2¹⁷ = 70019457010589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70019457141599 and 70019457141608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70019457141671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35009728570830 + 35009728570831.

It is an arithmetic number, because the mean of its divisors is an integer number (35009728570831).

Almost surely, 2^{70019457141661} is an apocalyptic number.

It is an amenable number.

70019457141661 is a deficient number, since it is larger than the sum of its proper divisors (1).

70019457141661 is an equidigital number, since it uses as much as digits as its factorization.

70019457141661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 70019457141661 in words is "seventy trillion, nineteen billion, four hundred fifty-seven million, one hundred forty-one thousand, six hundred sixty-one".