61148241221251 has 8 divisors (see below), whose sum is σ = 64406773717200. Its totient is φ = 57893729126400.

The previous prime is 61148241221237. The next prime is 61148241221267. The reversal of 61148241221251 is 15212214284116.

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

It is a cyclic number.

It is not a de Polignac number, because 61148241221251 - 2¹⁵ = 61148241188483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61148241221651) 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, 1005069046 + ... + 1005129883.

It is an arithmetic number, because the mean of its divisors is an integer number (8050846714650).

Almost surely, 2^{61148241221251} is an apocalyptic number.

61148241221251 is a deficient number, since it is larger than the sum of its proper divisors (3258532495949).

61148241221251 is a wasteful number, since it uses less digits than its factorization.

61148241221251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010200549.

The product of its digits is 61440, while the sum is 40.

The spelling of 61148241221251 in words is "sixty-one trillion, one hundred forty-eight billion, two hundred forty-one million, two hundred twenty-one thousand, two hundred fifty-one".