61015466333231 has 2 divisors, whose sum is σ = 61015466333232. Its totient is φ = 61015466333230.

The previous prime is 61015466333221. The next prime is 61015466333243. The reversal of 61015466333231 is 13233366451016.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61015466333231 is a prime.

It is a super-2 number, since 2×61015466333231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61015466333201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30507733166615 + 30507733166616.

It is an arithmetic number, because the mean of its divisors is an integer number (30507733166616).

Almost surely, 2^{61015466333231} is an apocalyptic number.

61015466333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

61015466333231 is an equidigital number, since it uses as much as digits as its factorization.

61015466333231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 44.

The spelling of 61015466333231 in words is "sixty-one trillion, fifteen billion, four hundred sixty-six million, three hundred thirty-three thousand, two hundred thirty-one".