61180146645 has 16 divisors (see below), whose sum is σ = 97892321280. Its totient is φ = 32628049344.

The previous prime is 61180146593. The next prime is 61180146667. The reversal of 61180146645 is 54664108116.

It is not a de Polignac number, because 61180146645 - 2⁸ = 61180146389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61180146597 and 61180146606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361836 + ... + 503274.

It is an arithmetic number, because the mean of its divisors is an integer number (6118270080).

Almost surely, 2^61180146645 is an apocalyptic number.

It is an amenable number.

61180146645 is a deficient number, since it is larger than the sum of its proper divisors (36712174635).

61180146645 is a wasteful number, since it uses less digits than its factorization.

61180146645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170284.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 61180146645 in words is "sixty-one billion, one hundred eighty million, one hundred forty-six thousand, six hundred forty-five".