1676977033661 has 2 divisors, whose sum is σ = 1676977033662. Its totient is φ = 1676977033660.

The previous prime is 1676977033639. The next prime is 1676977033727. The reversal of 1676977033661 is 1663307796761.

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., 1322916332761 + 354060700900 = 1150181^2 + 595030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1676977033661 - 2¹⁰ = 1676977032637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1676977033594 and 1676977033603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1676977033561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838488516830 + 838488516831.

It is an arithmetic number, because the mean of its divisors is an integer number (838488516831).

Almost surely, 2^{1676977033661} is an apocalyptic number.

It is an amenable number.

1676977033661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1676977033661 is an equidigital number, since it uses as much as digits as its factorization.

1676977033661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36006768, while the sum is 62.

The spelling of 1676977033661 in words is "one trillion, six hundred seventy-six billion, nine hundred seventy-seven million, thirty-three thousand, six hundred sixty-one".