61299153721331 has 16 divisors (see below), whose sum is σ = 64934508211200. Its totient is φ = 57667083277440.

The previous prime is 61299153721313. The next prime is 61299153721343. The reversal of 61299153721331 is 13312735199216.

61299153721331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61299153721331 is a prime.

It is a super-2 number, since 2×61299153721331² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61299153721301) 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 15 ways as a sum of consecutive naturals, for example, 587110070 + ... + 587214468.

It is an arithmetic number, because the mean of its divisors is an integer number (4058406763200).

Almost surely, 2^{61299153721331} is an apocalyptic number.

61299153721331 is a deficient number, since it is larger than the sum of its proper divisors (3635354489869).

61299153721331 is a wasteful number, since it uses less digits than its factorization.

61299153721331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119794.

The product of its digits is 1837080, while the sum is 53.

The spelling of 61299153721331 in words is "sixty-one trillion, two hundred ninety-nine billion, one hundred fifty-three million, seven hundred twenty-one thousand, three hundred thirty-one".