612112602161 has 16 divisors (see below), whose sum is σ = 636853613760. Its totient is φ = 587615232960.

The previous prime is 612112602133. The next prime is 612112602181. The reversal of 612112602161 is 161206211216.

It is a de Polignac number, because none of the positive numbers 2^k-612112602161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (612112602121) 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, 33180206 + ... + 33198648.

It is an arithmetic number, because the mean of its divisors is an integer number (39803350860).

Almost surely, 2^612112602161 is an apocalyptic number.

It is an amenable number.

612112602161 is a deficient number, since it is larger than the sum of its proper divisors (24741011599).

612112602161 is a wasteful number, since it uses less digits than its factorization.

612112602161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24976.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 612112602161 its reverse (161206211216), we get a palindrome (773318813377).

The spelling of 612112602161 in words is "six hundred twelve billion, one hundred twelve million, six hundred two thousand, one hundred sixty-one".