61863100075161 has 96 divisors (see below), whose sum is σ = 112954102480128. Its totient is φ = 31690599045120.

The previous prime is 61863100075157. The next prime is 61863100075181. The reversal of 61863100075161 is 16157000136816.

61863100075161 is a `hidden beast` number, since 6 + 1 + 8 + 631 + 0 + 0 + 0 + 7 + 5 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 61863100075161 - 2² = 61863100075157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61863100075181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 281013045 + ... + 281233101.

It is an arithmetic number, because the mean of its divisors is an integer number (1176605234168).

Almost surely, 2^{61863100075161} is an apocalyptic number.

It is an amenable number.

61863100075161 is a deficient number, since it is larger than the sum of its proper divisors (51091002404967).

61863100075161 is a wasteful number, since it uses less digits than its factorization.

61863100075161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225711 (or 225708 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 61863100075161 in words is "sixty-one trillion, eight hundred sixty-three billion, one hundred million, seventy-five thousand, one hundred sixty-one".