61866420601411 has 2 divisors, whose sum is σ = 61866420601412. Its totient is φ = 61866420601410.

The previous prime is 61866420601393. The next prime is 61866420601499. The reversal of 61866420601411 is 11410602466816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61866420601411 - 2³⁹ = 61316664787523 is a prime.

It is not a weakly prime, because it can be changed into another prime (61866450601411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30933210300705 + 30933210300706.

It is an arithmetic number, because the mean of its divisors is an integer number (30933210300706).

Almost surely, 2^{61866420601411} is an apocalyptic number.

61866420601411 is a deficient number, since it is larger than the sum of its proper divisors (1).

61866420601411 is an equidigital number, since it uses as much as digits as its factorization.

61866420601411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 61866420601411 in words is "sixty-one trillion, eight hundred sixty-six billion, four hundred twenty million, six hundred one thousand, four hundred eleven".