20125537361461 has 32 divisors (see below), whose sum is σ = 23349833515008. Its totient is φ = 16990394319360.

The previous prime is 20125537361441. The next prime is 20125537361491. The reversal of 20125537361461 is 16416373552102.

It is not a de Polignac number, because 20125537361461 - 2³⁷ = 19988098407989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125537361441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176912946 + ... + 177026668.

It is an arithmetic number, because the mean of its divisors is an integer number (729682297344).

Almost surely, 2^{20125537361461} is an apocalyptic number.

It is an amenable number.

20125537361461 is a deficient number, since it is larger than the sum of its proper divisors (3224296153547).

20125537361461 is a wasteful number, since it uses less digits than its factorization.

20125537361461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115081.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 20125537361461 in words is "twenty trillion, one hundred twenty-five billion, five hundred thirty-seven million, three hundred sixty-one thousand, four hundred sixty-one".