61073151145544 has 8 divisors (see below), whose sum is σ = 114512158397910. Its totient is φ = 30536575572768.

The previous prime is 61073151145529. The next prime is 61073151145597. The reversal of 61073151145544 is 44554115137016.

It can be written as a sum of positive squares in only one way, i.e., 60668988340900 + 404162804644 = 7789030^2 + 635738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817071946589 + ... + 3817071946604.

Almost surely, 2^{61073151145544} is an apocalyptic number.

It is an amenable number.

61073151145544 is a deficient number, since it is larger than the sum of its proper divisors (53439007252366).

61073151145544 is a wasteful number, since it uses less digits than its factorization.

61073151145544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634143893199 (or 7634143893195 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 61073151145544 in words is "sixty-one trillion, seventy-three billion, one hundred fifty-one million, one hundred forty-five thousand, five hundred forty-four".