61216044153 has 16 divisors (see below), whose sum is σ = 90721550016. Its totient is φ = 36400619840.

The previous prime is 61216044137. The next prime is 61216044161. The reversal of 61216044153 is 35144061216.

It is a cyclic number.

It is not a de Polignac number, because 61216044153 - 2⁴ = 61216044137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61216044553) 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, 17498550 + ... + 17502047.

It is an arithmetic number, because the mean of its divisors is an integer number (5670096876).

Almost surely, 2^61216044153 is an apocalyptic number.

It is an amenable number.

61216044153 is a deficient number, since it is larger than the sum of its proper divisors (29505505863).

61216044153 is a wasteful number, since it uses less digits than its factorization.

61216044153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35000664.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 61216044153 in words is "sixty-one billion, two hundred sixteen million, forty-four thousand, one hundred fifty-three".