61601444103155 has 32 divisors (see below), whose sum is σ = 83424150374400. Its totient is φ = 43255406051200.

The previous prime is 61601444103149. The next prime is 61601444103161. The reversal of 61601444103155 is 55130144410616.

It is an interprime number because it is at equal distance from previous prime (61601444103149) and next prime (61601444103161).

It is not a de Polignac number, because 61601444103155 - 2⁸ = 61601444102899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96528770 + ... + 97164840.

It is an arithmetic number, because the mean of its divisors is an integer number (2607004699200).

Almost surely, 2^{61601444103155} is an apocalyptic number.

61601444103155 is a deficient number, since it is larger than the sum of its proper divisors (21822706271245).

61601444103155 is a wasteful number, since it uses less digits than its factorization.

61601444103155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696835.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 61601444103155 in words is "sixty-one trillion, six hundred one billion, four hundred forty-four million, one hundred three thousand, one hundred fifty-five".