61061628047355 has 48 divisors (see below), whose sum is σ = 116761747336416. Its totient is φ = 29327911395840.

The previous prime is 61061628047249. The next prime is 61061628047423. The reversal of 61061628047355 is 55374082616016.

It is a happy number.

61061628047355 is a `hidden beast` number, since 6 + 1 + 0 + 6 + 1 + 6 + 280 + 4 + 7 + 355 = 666.

It is not a de Polignac number, because 61061628047355 - 2¹⁴ = 61061628030971 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1272888837 + ... + 1272936806.

It is an arithmetic number, because the mean of its divisors is an integer number (2432536402842).

Almost surely, 2^{61061628047355} is an apocalyptic number.

61061628047355 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61061628047355 is a deficient number, since it is larger than the sum of its proper divisors (55700119289061).

61061628047355 is a wasteful number, since it uses less digits than its factorization.

61061628047355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545825708 (or 2545825705 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 61061628047355 in words is "sixty-one trillion, sixty-one billion, six hundred twenty-eight million, forty-seven thousand, three hundred fifty-five".