61161151303 has 16 divisors (see below), whose sum is σ = 70796355840. Its totient is φ = 51751417536.

The previous prime is 61161151273. The next prime is 61161151307. The reversal of 61161151303 is 30315116116.

It is a de Polignac number, because none of the positive numbers 2^k-61161151303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61161151307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708076 + ... + 789742.

It is an arithmetic number, because the mean of its divisors is an integer number (4424772240).

Almost surely, 2^61161151303 is an apocalyptic number.

61161151303 is a deficient number, since it is larger than the sum of its proper divisors (9635204537).

61161151303 is a wasteful number, since it uses less digits than its factorization.

61161151303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83046.

The product of its (nonzero) digits is 1620, while the sum is 28.

Adding to 61161151303 its reverse (30315116116), we get a palindrome (91476267419).

The spelling of 61161151303 in words is "sixty-one billion, one hundred sixty-one million, one hundred fifty-one thousand, three hundred three".