61012165115121 has 8 divisors (see below), whose sum is σ = 88744967440224. Its totient is φ = 36977069766720.

The previous prime is 61012165115053. The next prime is 61012165115123. The reversal of 61012165115121 is 12151156121016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61012165115121 - 2⁷ = 61012165114993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1848853488337 = 61012165115121 / (6 + 1 + 0 + 1 + 2 + 1 + 6 + 5 + 1 + 1 + 5 + 1 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (61012165115123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924426744136 + ... + 924426744201.

It is an arithmetic number, because the mean of its divisors is an integer number (11093120930028).

Almost surely, 2^{61012165115121} is an apocalyptic number.

It is an amenable number.

61012165115121 is a deficient number, since it is larger than the sum of its proper divisors (27732802325103).

61012165115121 is a wasteful number, since it uses less digits than its factorization.

61012165115121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848853488351.

The product of its (nonzero) digits is 3600, while the sum is 33.

The spelling of 61012165115121 in words is "sixty-one trillion, twelve billion, one hundred sixty-five million, one hundred fifteen thousand, one hundred twenty-one".