1996677754061 has 2 divisors, whose sum is σ = 1996677754062. Its totient is φ = 1996677754060.

The previous prime is 1996677754031. The next prime is 1996677754069. The reversal of 1996677754061 is 1604577766991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057534573225 + 939143180836 = 1028365^2 + 969094^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996677754061 - 2³⁴ = 1979497884877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1996677753982 and 1996677754000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996677754069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998338877030 + 998338877031.

It is an arithmetic number, because the mean of its divisors is an integer number (998338877031).

Almost surely, 2^{1996677754061} is an apocalyptic number.

It is an amenable number.

1996677754061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996677754061 is an equidigital number, since it uses as much as digits as its factorization.

1996677754061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120022560, while the sum is 68.

The spelling of 1996677754061 in words is "one trillion, nine hundred ninety-six billion, six hundred seventy-seven million, seven hundred fifty-four thousand, sixty-one".