61244552360155 has 16 divisors (see below), whose sum is σ = 74075196017664. Its totient is φ = 48607851479040.

The previous prime is 61244552360137. The next prime is 61244552360161. The reversal of 61244552360155 is 55106325544216.

It is not a de Polignac number, because 61244552360155 - 2⁹ = 61244552359643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61244552360099 and 61244552360108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13575579 + ... + 17515291.

It is an arithmetic number, because the mean of its divisors is an integer number (4629699751104).

Almost surely, 2^{61244552360155} is an apocalyptic number.

61244552360155 is a deficient number, since it is larger than the sum of its proper divisors (12830643657509).

61244552360155 is a wasteful number, since it uses less digits than its factorization.

61244552360155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964326.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 61244552360155 in words is "sixty-one trillion, two hundred forty-four billion, five hundred fifty-two million, three hundred sixty thousand, one hundred fifty-five".