61165062550001 has 4 divisors (see below), whose sum is σ = 63138129083904. Its totient is φ = 59191996016100.

The previous prime is 61165062549991. The next prime is 61165062550003. The reversal of 61165062550001 is 10005526056116.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61165062550001 - 2³⁰ = 61163988808177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61165062550003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986533266905 + ... + 986533266966.

It is an arithmetic number, because the mean of its divisors is an integer number (15784532270976).

Almost surely, 2^{61165062550001} is an apocalyptic number.

It is an amenable number.

61165062550001 is a deficient number, since it is larger than the sum of its proper divisors (1973066533903).

61165062550001 is a wasteful number, since it uses less digits than its factorization.

61165062550001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973066533902.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 61165062550001 in words is "sixty-one trillion, one hundred sixty-five billion, sixty-two million, five hundred fifty thousand, one".