61613122171574 has 32 divisors (see below), whose sum is σ = 92786582418816. Its totient is φ = 30684456391680.

The previous prime is 61613122171543. The next prime is 61613122171577. The reversal of 61613122171574 is 47517122131616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61613122171577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6075640544 + ... + 6075650684.

It is an arithmetic number, because the mean of its divisors is an integer number (2899580700588).

Almost surely, 2^{61613122171574} is an apocalyptic number.

61613122171574 is a deficient number, since it is larger than the sum of its proper divisors (31173460247242).

61613122171574 is a wasteful number, since it uses less digits than its factorization.

61613122171574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18600.

The product of its digits is 423360, while the sum is 47.

The spelling of 61613122171574 in words is "sixty-one trillion, six hundred thirteen billion, one hundred twenty-two million, one hundred seventy-one thousand, five hundred seventy-four".