61516226556427 has 2 divisors, whose sum is σ = 61516226556428. Its totient is φ = 61516226556426.

The previous prime is 61516226556409. The next prime is 61516226556461. The reversal of 61516226556427 is 72465562261516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61516226556427 - 2⁷ = 61516226556299 is a prime.

It is a super-2 number, since 2×61516226556427² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61516226556497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30758113278213 + 30758113278214.

It is an arithmetic number, because the mean of its divisors is an integer number (30758113278214).

Almost surely, 2^{61516226556427} is an apocalyptic number.

61516226556427 is a deficient number, since it is larger than the sum of its proper divisors (1).

61516226556427 is an equidigital number, since it uses as much as digits as its factorization.

61516226556427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000, while the sum is 58.

The spelling of 61516226556427 in words is "sixty-one trillion, five hundred sixteen billion, two hundred twenty-six million, five hundred fifty-six thousand, four hundred twenty-seven".